2 * ipr.c -- driver for IBM Power Linux RAID adapters
4 * Written By: Brian King <brking@us.ibm.com>, IBM Corporation
6 * Copyright (C) 2003, 2004 IBM Corporation
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
27 * This driver is used to control the following SCSI adapters:
29 * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B
31 * IBM pSeries: PCI-X Dual Channel Ultra 320 SCSI RAID Adapter
32 * PCI-X Dual Channel Ultra 320 SCSI Adapter
33 * PCI-X Dual Channel Ultra 320 SCSI RAID Enablement Card
34 * Embedded SCSI adapter on p615 and p655 systems
36 * Supported Hardware Features:
37 * - Ultra 320 SCSI controller
38 * - PCI-X host interface
39 * - Embedded PowerPC RISC Processor and Hardware XOR DMA Engine
40 * - Non-Volatile Write Cache
41 * - Supports attachment of non-RAID disks, tape, and optical devices
42 * - RAID Levels 0, 5, 10
44 * - Background Parity Checking
45 * - Background Data Scrubbing
46 * - Ability to increase the capacity of an existing RAID 5 disk array
50 * - Tagged command queuing
51 * - Adapter microcode download
53 * - SCSI device hot plug
58 #include <linux/init.h>
59 #include <linux/types.h>
60 #include <linux/errno.h>
61 #include <linux/kernel.h>
62 #include <linux/ioport.h>
63 #include <linux/delay.h>
64 #include <linux/pci.h>
65 #include <linux/wait.h>
66 #include <linux/spinlock.h>
67 #include <linux/sched.h>
68 #include <linux/interrupt.h>
69 #include <linux/blkdev.h>
70 #include <linux/firmware.h>
71 #include <linux/module.h>
72 #include <linux/moduleparam.h>
73 #include <linux/libata.h>
76 #include <asm/processor.h>
77 #include <scsi/scsi.h>
78 #include <scsi/scsi_host.h>
79 #include <scsi/scsi_tcq.h>
80 #include <scsi/scsi_eh.h>
81 #include <scsi/scsi_cmnd.h>
87 static LIST_HEAD(ipr_ioa_head);
88 static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL;
89 static unsigned int ipr_max_speed = 1;
90 static int ipr_testmode = 0;
91 static unsigned int ipr_fastfail = 0;
92 static unsigned int ipr_transop_timeout = 0;
93 static unsigned int ipr_enable_cache = 1;
94 static unsigned int ipr_debug = 0;
95 static unsigned int ipr_dual_ioa_raid = 1;
96 static DEFINE_SPINLOCK(ipr_driver_lock);
98 /* This table describes the differences between DMA controller chips */
99 static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
100 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */
102 .cache_line_size = 0x20,
104 .set_interrupt_mask_reg = 0x0022C,
105 .clr_interrupt_mask_reg = 0x00230,
106 .sense_interrupt_mask_reg = 0x0022C,
107 .clr_interrupt_reg = 0x00228,
108 .sense_interrupt_reg = 0x00224,
109 .ioarrin_reg = 0x00404,
110 .sense_uproc_interrupt_reg = 0x00214,
111 .set_uproc_interrupt_reg = 0x00214,
112 .clr_uproc_interrupt_reg = 0x00218
115 { /* Snipe and Scamp */
117 .cache_line_size = 0x20,
119 .set_interrupt_mask_reg = 0x00288,
120 .clr_interrupt_mask_reg = 0x0028C,
121 .sense_interrupt_mask_reg = 0x00288,
122 .clr_interrupt_reg = 0x00284,
123 .sense_interrupt_reg = 0x00280,
124 .ioarrin_reg = 0x00504,
125 .sense_uproc_interrupt_reg = 0x00290,
126 .set_uproc_interrupt_reg = 0x00290,
127 .clr_uproc_interrupt_reg = 0x00294
132 static const struct ipr_chip_t ipr_chip[] = {
133 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, &ipr_chip_cfg[0] },
134 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, &ipr_chip_cfg[0] },
135 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, &ipr_chip_cfg[0] },
136 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, &ipr_chip_cfg[0] },
137 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, &ipr_chip_cfg[0] },
138 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, &ipr_chip_cfg[1] },
139 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, &ipr_chip_cfg[1] }
142 static int ipr_max_bus_speeds [] = {
143 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE
146 MODULE_AUTHOR("Brian King <brking@us.ibm.com>");
147 MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver");
148 module_param_named(max_speed, ipr_max_speed, uint, 0);
149 MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320");
150 module_param_named(log_level, ipr_log_level, uint, 0);
151 MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver");
152 module_param_named(testmode, ipr_testmode, int, 0);
153 MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations");
154 module_param_named(fastfail, ipr_fastfail, int, 0);
155 MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
156 module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
157 MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
158 module_param_named(enable_cache, ipr_enable_cache, int, 0);
159 MODULE_PARM_DESC(enable_cache, "Enable adapter's non-volatile write cache (default: 1)");
160 module_param_named(debug, ipr_debug, int, 0);
161 MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
162 module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0);
163 MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)");
164 MODULE_LICENSE("GPL");
165 MODULE_VERSION(IPR_DRIVER_VERSION);
167 /* A constant array of IOASCs/URCs/Error Messages */
169 struct ipr_error_table_t ipr_error_table[] = {
170 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL,
171 "8155: An unknown error was received"},
173 "Soft underlength error"},
175 "Command to be cancelled not found"},
177 "Qualified success"},
178 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL,
179 "FFFE: Soft device bus error recovered by the IOA"},
180 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL,
181 "4101: Soft device bus fabric error"},
182 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL,
183 "FFF9: Device sector reassign successful"},
184 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL,
185 "FFF7: Media error recovered by device rewrite procedures"},
186 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL,
187 "7001: IOA sector reassignment successful"},
188 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL,
189 "FFF9: Soft media error. Sector reassignment recommended"},
190 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL,
191 "FFF7: Media error recovered by IOA rewrite procedures"},
192 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL,
193 "FF3D: Soft PCI bus error recovered by the IOA"},
194 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL,
195 "FFF6: Device hardware error recovered by the IOA"},
196 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL,
197 "FFF6: Device hardware error recovered by the device"},
198 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL,
199 "FF3D: Soft IOA error recovered by the IOA"},
200 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL,
201 "FFFA: Undefined device response recovered by the IOA"},
202 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL,
203 "FFF6: Device bus error, message or command phase"},
204 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL,
205 "FFFE: Task Management Function failed"},
206 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL,
207 "FFF6: Failure prediction threshold exceeded"},
208 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL,
209 "8009: Impending cache battery pack failure"},
211 "34FF: Disk device format in progress"},
212 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL,
213 "9070: IOA requested reset"},
215 "Synchronization required"},
217 "No ready, IOA shutdown"},
219 "Not ready, IOA has been shutdown"},
220 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL,
221 "3020: Storage subsystem configuration error"},
223 "FFF5: Medium error, data unreadable, recommend reassign"},
225 "7000: Medium error, data unreadable, do not reassign"},
226 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL,
227 "FFF3: Disk media format bad"},
228 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL,
229 "3002: Addressed device failed to respond to selection"},
230 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL,
231 "3100: Device bus error"},
232 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL,
233 "3109: IOA timed out a device command"},
235 "3120: SCSI bus is not operational"},
236 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL,
237 "4100: Hard device bus fabric error"},
238 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL,
239 "9000: IOA reserved area data check"},
240 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL,
241 "9001: IOA reserved area invalid data pattern"},
242 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL,
243 "9002: IOA reserved area LRC error"},
244 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL,
245 "102E: Out of alternate sectors for disk storage"},
246 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL,
247 "FFF4: Data transfer underlength error"},
248 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL,
249 "FFF4: Data transfer overlength error"},
250 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL,
251 "3400: Logical unit failure"},
252 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL,
253 "FFF4: Device microcode is corrupt"},
254 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL,
255 "8150: PCI bus error"},
257 "Unsupported device bus message received"},
258 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL,
259 "FFF4: Disk device problem"},
260 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL,
261 "8150: Permanent IOA failure"},
262 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL,
263 "3010: Disk device returned wrong response to IOA"},
264 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL,
265 "8151: IOA microcode error"},
267 "Device bus status error"},
268 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL,
269 "8157: IOA error requiring IOA reset to recover"},
271 "ATA device status error"},
273 "Message reject received from the device"},
274 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL,
275 "8008: A permanent cache battery pack failure occurred"},
276 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL,
277 "9090: Disk unit has been modified after the last known status"},
278 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL,
279 "9081: IOA detected device error"},
280 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL,
281 "9082: IOA detected device error"},
282 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL,
283 "3110: Device bus error, message or command phase"},
284 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL,
285 "3110: SAS Command / Task Management Function failed"},
286 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL,
287 "9091: Incorrect hardware configuration change has been detected"},
288 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL,
289 "9073: Invalid multi-adapter configuration"},
290 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL,
291 "4010: Incorrect connection between cascaded expanders"},
292 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL,
293 "4020: Connections exceed IOA design limits"},
294 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL,
295 "4030: Incorrect multipath connection"},
296 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL,
297 "4110: Unsupported enclosure function"},
298 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL,
299 "FFF4: Command to logical unit failed"},
301 "Illegal request, invalid request type or request packet"},
303 "Illegal request, invalid resource handle"},
305 "Illegal request, commands not allowed to this device"},
307 "Illegal request, command not allowed to a secondary adapter"},
309 "Illegal request, invalid field in parameter list"},
311 "Illegal request, parameter not supported"},
313 "Illegal request, parameter value invalid"},
315 "Illegal request, command sequence error"},
317 "Illegal request, dual adapter support not enabled"},
318 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL,
319 "9031: Array protection temporarily suspended, protection resuming"},
320 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL,
321 "9040: Array protection temporarily suspended, protection resuming"},
322 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL,
323 "3140: Device bus not ready to ready transition"},
324 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL,
325 "FFFB: SCSI bus was reset"},
327 "FFFE: SCSI bus transition to single ended"},
329 "FFFE: SCSI bus transition to LVD"},
330 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL,
331 "FFFB: SCSI bus was reset by another initiator"},
332 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL,
333 "3029: A device replacement has occurred"},
334 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL,
335 "9051: IOA cache data exists for a missing or failed device"},
336 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL,
337 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
338 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL,
339 "9025: Disk unit is not supported at its physical location"},
340 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL,
341 "3020: IOA detected a SCSI bus configuration error"},
342 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL,
343 "3150: SCSI bus configuration error"},
344 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL,
345 "9074: Asymmetric advanced function disk configuration"},
346 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL,
347 "4040: Incomplete multipath connection between IOA and enclosure"},
348 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL,
349 "4041: Incomplete multipath connection between enclosure and device"},
350 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL,
351 "9075: Incomplete multipath connection between IOA and remote IOA"},
352 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL,
353 "9076: Configuration error, missing remote IOA"},
354 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
355 "4050: Enclosure does not support a required multipath function"},
356 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
357 "9041: Array protection temporarily suspended"},
358 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
359 "9042: Corrupt array parity detected on specified device"},
360 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL,
361 "9030: Array no longer protected due to missing or failed disk unit"},
362 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL,
363 "9071: Link operational transition"},
364 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL,
365 "9072: Link not operational transition"},
366 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
367 "9032: Array exposed but still protected"},
368 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1,
369 "70DD: Device forced failed by disrupt device command"},
370 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
371 "4061: Multipath redundancy level got better"},
372 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
373 "4060: Multipath redundancy level got worse"},
375 "Failure due to other device"},
376 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL,
377 "9008: IOA does not support functions expected by devices"},
378 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL,
379 "9010: Cache data associated with attached devices cannot be found"},
380 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL,
381 "9011: Cache data belongs to devices other than those attached"},
382 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL,
383 "9020: Array missing 2 or more devices with only 1 device present"},
384 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL,
385 "9021: Array missing 2 or more devices with 2 or more devices present"},
386 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL,
387 "9022: Exposed array is missing a required device"},
388 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL,
389 "9023: Array member(s) not at required physical locations"},
390 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL,
391 "9024: Array not functional due to present hardware configuration"},
392 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL,
393 "9026: Array not functional due to present hardware configuration"},
394 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL,
395 "9027: Array is missing a device and parity is out of sync"},
396 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL,
397 "9028: Maximum number of arrays already exist"},
398 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL,
399 "9050: Required cache data cannot be located for a disk unit"},
400 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL,
401 "9052: Cache data exists for a device that has been modified"},
402 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL,
403 "9054: IOA resources not available due to previous problems"},
404 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL,
405 "9092: Disk unit requires initialization before use"},
406 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL,
407 "9029: Incorrect hardware configuration change has been detected"},
408 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL,
409 "9060: One or more disk pairs are missing from an array"},
410 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL,
411 "9061: One or more disks are missing from an array"},
412 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL,
413 "9062: One or more disks are missing from an array"},
414 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL,
415 "9063: Maximum number of functional arrays has been exceeded"},
417 "Aborted command, invalid descriptor"},
419 "Command terminated by host"}
422 static const struct ipr_ses_table_entry ipr_ses_table[] = {
423 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 },
424 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 },
425 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
426 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
427 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
428 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
429 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 },
430 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 },
431 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
432 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
433 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 },
434 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
435 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
439 * Function Prototypes
441 static int ipr_reset_alert(struct ipr_cmnd *);
442 static void ipr_process_ccn(struct ipr_cmnd *);
443 static void ipr_process_error(struct ipr_cmnd *);
444 static void ipr_reset_ioa_job(struct ipr_cmnd *);
445 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *,
446 enum ipr_shutdown_type);
448 #ifdef CONFIG_SCSI_IPR_TRACE
450 * ipr_trc_hook - Add a trace entry to the driver trace
451 * @ipr_cmd: ipr command struct
453 * @add_data: additional data
458 static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
459 u8 type, u32 add_data)
461 struct ipr_trace_entry *trace_entry;
462 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
464 trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++];
465 trace_entry->time = jiffies;
466 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
467 trace_entry->type = type;
468 trace_entry->ata_op_code = ipr_cmd->ioarcb.add_data.u.regs.command;
469 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
470 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
471 trace_entry->u.add_data = add_data;
474 #define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0)
478 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
479 * @ipr_cmd: ipr command struct
484 static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
486 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
487 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
488 dma_addr_t dma_addr = be32_to_cpu(ioarcb->ioarcb_host_pci_addr);
490 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
491 ioarcb->write_data_transfer_length = 0;
492 ioarcb->read_data_transfer_length = 0;
493 ioarcb->write_ioadl_len = 0;
494 ioarcb->read_ioadl_len = 0;
495 ioarcb->write_ioadl_addr =
496 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl));
497 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
499 ioasa->residual_data_len = 0;
500 ioasa->u.gata.status = 0;
502 ipr_cmd->scsi_cmd = NULL;
504 ipr_cmd->sense_buffer[0] = 0;
505 ipr_cmd->dma_use_sg = 0;
509 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
510 * @ipr_cmd: ipr command struct
515 static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
517 ipr_reinit_ipr_cmnd(ipr_cmd);
518 ipr_cmd->u.scratch = 0;
519 ipr_cmd->sibling = NULL;
520 init_timer(&ipr_cmd->timer);
524 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
525 * @ioa_cfg: ioa config struct
528 * pointer to ipr command struct
531 struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
533 struct ipr_cmnd *ipr_cmd;
535 ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue);
536 list_del(&ipr_cmd->queue);
537 ipr_init_ipr_cmnd(ipr_cmd);
543 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
544 * @ioa_cfg: ioa config struct
545 * @clr_ints: interrupts to clear
547 * This function masks all interrupts on the adapter, then clears the
548 * interrupts specified in the mask
553 static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
556 volatile u32 int_reg;
558 /* Stop new interrupts */
559 ioa_cfg->allow_interrupts = 0;
561 /* Set interrupt mask to stop all new interrupts */
562 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
564 /* Clear any pending interrupts */
565 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg);
566 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
570 * ipr_save_pcix_cmd_reg - Save PCI-X command register
571 * @ioa_cfg: ioa config struct
574 * 0 on success / -EIO on failure
576 static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
578 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
580 if (pcix_cmd_reg == 0)
583 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
584 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
585 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
589 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
594 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
595 * @ioa_cfg: ioa config struct
598 * 0 on success / -EIO on failure
600 static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
602 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
605 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
606 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
607 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
616 * ipr_sata_eh_done - done function for aborted SATA commands
617 * @ipr_cmd: ipr command struct
619 * This function is invoked for ops generated to SATA
620 * devices which are being aborted.
625 static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
627 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
628 struct ata_queued_cmd *qc = ipr_cmd->qc;
629 struct ipr_sata_port *sata_port = qc->ap->private_data;
631 qc->err_mask |= AC_ERR_OTHER;
632 sata_port->ioasa.status |= ATA_BUSY;
633 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
638 * ipr_scsi_eh_done - mid-layer done function for aborted ops
639 * @ipr_cmd: ipr command struct
641 * This function is invoked by the interrupt handler for
642 * ops generated by the SCSI mid-layer which are being aborted.
647 static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
649 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
650 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
652 scsi_cmd->result |= (DID_ERROR << 16);
654 scsi_dma_unmap(ipr_cmd->scsi_cmd);
655 scsi_cmd->scsi_done(scsi_cmd);
656 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
660 * ipr_fail_all_ops - Fails all outstanding ops.
661 * @ioa_cfg: ioa config struct
663 * This function fails all outstanding ops.
668 static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
670 struct ipr_cmnd *ipr_cmd, *temp;
673 list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) {
674 list_del(&ipr_cmd->queue);
676 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
677 ipr_cmd->ioasa.ilid = cpu_to_be32(IPR_DRIVER_ILID);
679 if (ipr_cmd->scsi_cmd)
680 ipr_cmd->done = ipr_scsi_eh_done;
681 else if (ipr_cmd->qc)
682 ipr_cmd->done = ipr_sata_eh_done;
684 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET);
685 del_timer(&ipr_cmd->timer);
686 ipr_cmd->done(ipr_cmd);
693 * ipr_do_req - Send driver initiated requests.
694 * @ipr_cmd: ipr command struct
695 * @done: done function
696 * @timeout_func: timeout function
697 * @timeout: timeout value
699 * This function sends the specified command to the adapter with the
700 * timeout given. The done function is invoked on command completion.
705 static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
706 void (*done) (struct ipr_cmnd *),
707 void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
709 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
711 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
713 ipr_cmd->done = done;
715 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
716 ipr_cmd->timer.expires = jiffies + timeout;
717 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
719 add_timer(&ipr_cmd->timer);
721 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
724 writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr),
725 ioa_cfg->regs.ioarrin_reg);
729 * ipr_internal_cmd_done - Op done function for an internally generated op.
730 * @ipr_cmd: ipr command struct
732 * This function is the op done function for an internally generated,
733 * blocking op. It simply wakes the sleeping thread.
738 static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
740 if (ipr_cmd->sibling)
741 ipr_cmd->sibling = NULL;
743 complete(&ipr_cmd->completion);
747 * ipr_send_blocking_cmd - Send command and sleep on its completion.
748 * @ipr_cmd: ipr command struct
749 * @timeout_func: function to invoke if command times out
755 static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
756 void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
759 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
761 init_completion(&ipr_cmd->completion);
762 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
764 spin_unlock_irq(ioa_cfg->host->host_lock);
765 wait_for_completion(&ipr_cmd->completion);
766 spin_lock_irq(ioa_cfg->host->host_lock);
770 * ipr_send_hcam - Send an HCAM to the adapter.
771 * @ioa_cfg: ioa config struct
773 * @hostrcb: hostrcb struct
775 * This function will send a Host Controlled Async command to the adapter.
776 * If HCAMs are currently not allowed to be issued to the adapter, it will
777 * place the hostrcb on the free queue.
782 static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
783 struct ipr_hostrcb *hostrcb)
785 struct ipr_cmnd *ipr_cmd;
786 struct ipr_ioarcb *ioarcb;
788 if (ioa_cfg->allow_cmds) {
789 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
790 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
791 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
793 ipr_cmd->u.hostrcb = hostrcb;
794 ioarcb = &ipr_cmd->ioarcb;
796 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
797 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
798 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
799 ioarcb->cmd_pkt.cdb[1] = type;
800 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
801 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
803 ioarcb->read_data_transfer_length = cpu_to_be32(sizeof(hostrcb->hcam));
804 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
805 ipr_cmd->ioadl[0].flags_and_data_len =
806 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(hostrcb->hcam));
807 ipr_cmd->ioadl[0].address = cpu_to_be32(hostrcb->hostrcb_dma);
809 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
810 ipr_cmd->done = ipr_process_ccn;
812 ipr_cmd->done = ipr_process_error;
814 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR);
817 writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr),
818 ioa_cfg->regs.ioarrin_reg);
820 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
825 * ipr_init_res_entry - Initialize a resource entry struct.
826 * @res: resource entry struct
831 static void ipr_init_res_entry(struct ipr_resource_entry *res)
833 res->needs_sync_complete = 0;
836 res->del_from_ml = 0;
837 res->resetting_device = 0;
839 res->sata_port = NULL;
843 * ipr_handle_config_change - Handle a config change from the adapter
844 * @ioa_cfg: ioa config struct
850 static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
851 struct ipr_hostrcb *hostrcb)
853 struct ipr_resource_entry *res = NULL;
854 struct ipr_config_table_entry *cfgte;
857 cfgte = &hostrcb->hcam.u.ccn.cfgte;
859 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
860 if (!memcmp(&res->cfgte.res_addr, &cfgte->res_addr,
861 sizeof(cfgte->res_addr))) {
868 if (list_empty(&ioa_cfg->free_res_q)) {
869 ipr_send_hcam(ioa_cfg,
870 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
875 res = list_entry(ioa_cfg->free_res_q.next,
876 struct ipr_resource_entry, queue);
878 list_del(&res->queue);
879 ipr_init_res_entry(res);
880 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
883 memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry));
885 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
887 res->del_from_ml = 1;
888 res->cfgte.res_handle = IPR_INVALID_RES_HANDLE;
889 if (ioa_cfg->allow_ml_add_del)
890 schedule_work(&ioa_cfg->work_q);
892 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
893 } else if (!res->sdev) {
895 if (ioa_cfg->allow_ml_add_del)
896 schedule_work(&ioa_cfg->work_q);
899 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
903 * ipr_process_ccn - Op done function for a CCN.
904 * @ipr_cmd: ipr command struct
906 * This function is the op done function for a configuration
907 * change notification host controlled async from the adapter.
912 static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
914 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
915 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
916 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
918 list_del(&hostrcb->queue);
919 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
922 if (ioasc != IPR_IOASC_IOA_WAS_RESET)
923 dev_err(&ioa_cfg->pdev->dev,
924 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
926 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
928 ipr_handle_config_change(ioa_cfg, hostrcb);
933 * strip_and_pad_whitespace - Strip and pad trailing whitespace.
934 * @i: index into buffer
935 * @buf: string to modify
937 * This function will strip all trailing whitespace, pad the end
938 * of the string with a single space, and NULL terminate the string.
941 * new length of string
943 static int strip_and_pad_whitespace(int i, char *buf)
945 while (i && buf[i] == ' ')
953 * ipr_log_vpd_compact - Log the passed extended VPD compactly.
954 * @prefix: string to print at start of printk
955 * @hostrcb: hostrcb pointer
956 * @vpd: vendor/product id/sn struct
961 static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
964 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3];
967 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
968 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer);
970 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN);
971 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer);
973 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN);
974 buffer[IPR_SERIAL_NUM_LEN + i] = '\0';
976 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer);
980 * ipr_log_vpd - Log the passed VPD to the error log.
981 * @vpd: vendor/product id/sn struct
986 static void ipr_log_vpd(struct ipr_vpd *vpd)
988 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
989 + IPR_SERIAL_NUM_LEN];
991 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
992 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
994 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
995 ipr_err("Vendor/Product ID: %s\n", buffer);
997 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
998 buffer[IPR_SERIAL_NUM_LEN] = '\0';
999 ipr_err(" Serial Number: %s\n", buffer);
1003 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly.
1004 * @prefix: string to print at start of printk
1005 * @hostrcb: hostrcb pointer
1006 * @vpd: vendor/product id/sn/wwn struct
1011 static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1012 struct ipr_ext_vpd *vpd)
1014 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd);
1015 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix,
1016 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1]));
1020 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
1021 * @vpd: vendor/product id/sn/wwn struct
1026 static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
1028 ipr_log_vpd(&vpd->vpd);
1029 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
1030 be32_to_cpu(vpd->wwid[1]));
1034 * ipr_log_enhanced_cache_error - Log a cache error.
1035 * @ioa_cfg: ioa config struct
1036 * @hostrcb: hostrcb struct
1041 static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1042 struct ipr_hostrcb *hostrcb)
1044 struct ipr_hostrcb_type_12_error *error =
1045 &hostrcb->hcam.u.error.u.type_12_error;
1047 ipr_err("-----Current Configuration-----\n");
1048 ipr_err("Cache Directory Card Information:\n");
1049 ipr_log_ext_vpd(&error->ioa_vpd);
1050 ipr_err("Adapter Card Information:\n");
1051 ipr_log_ext_vpd(&error->cfc_vpd);
1053 ipr_err("-----Expected Configuration-----\n");
1054 ipr_err("Cache Directory Card Information:\n");
1055 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
1056 ipr_err("Adapter Card Information:\n");
1057 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
1059 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1060 be32_to_cpu(error->ioa_data[0]),
1061 be32_to_cpu(error->ioa_data[1]),
1062 be32_to_cpu(error->ioa_data[2]));
1066 * ipr_log_cache_error - Log a cache error.
1067 * @ioa_cfg: ioa config struct
1068 * @hostrcb: hostrcb struct
1073 static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1074 struct ipr_hostrcb *hostrcb)
1076 struct ipr_hostrcb_type_02_error *error =
1077 &hostrcb->hcam.u.error.u.type_02_error;
1079 ipr_err("-----Current Configuration-----\n");
1080 ipr_err("Cache Directory Card Information:\n");
1081 ipr_log_vpd(&error->ioa_vpd);
1082 ipr_err("Adapter Card Information:\n");
1083 ipr_log_vpd(&error->cfc_vpd);
1085 ipr_err("-----Expected Configuration-----\n");
1086 ipr_err("Cache Directory Card Information:\n");
1087 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
1088 ipr_err("Adapter Card Information:\n");
1089 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
1091 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1092 be32_to_cpu(error->ioa_data[0]),
1093 be32_to_cpu(error->ioa_data[1]),
1094 be32_to_cpu(error->ioa_data[2]));
1098 * ipr_log_enhanced_config_error - Log a configuration error.
1099 * @ioa_cfg: ioa config struct
1100 * @hostrcb: hostrcb struct
1105 static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
1106 struct ipr_hostrcb *hostrcb)
1108 int errors_logged, i;
1109 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
1110 struct ipr_hostrcb_type_13_error *error;
1112 error = &hostrcb->hcam.u.error.u.type_13_error;
1113 errors_logged = be32_to_cpu(error->errors_logged);
1115 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1116 be32_to_cpu(error->errors_detected), errors_logged);
1118 dev_entry = error->dev;
1120 for (i = 0; i < errors_logged; i++, dev_entry++) {
1123 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1124 ipr_log_ext_vpd(&dev_entry->vpd);
1126 ipr_err("-----New Device Information-----\n");
1127 ipr_log_ext_vpd(&dev_entry->new_vpd);
1129 ipr_err("Cache Directory Card Information:\n");
1130 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1132 ipr_err("Adapter Card Information:\n");
1133 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1138 * ipr_log_config_error - Log a configuration error.
1139 * @ioa_cfg: ioa config struct
1140 * @hostrcb: hostrcb struct
1145 static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
1146 struct ipr_hostrcb *hostrcb)
1148 int errors_logged, i;
1149 struct ipr_hostrcb_device_data_entry *dev_entry;
1150 struct ipr_hostrcb_type_03_error *error;
1152 error = &hostrcb->hcam.u.error.u.type_03_error;
1153 errors_logged = be32_to_cpu(error->errors_logged);
1155 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1156 be32_to_cpu(error->errors_detected), errors_logged);
1158 dev_entry = error->dev;
1160 for (i = 0; i < errors_logged; i++, dev_entry++) {
1163 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1164 ipr_log_vpd(&dev_entry->vpd);
1166 ipr_err("-----New Device Information-----\n");
1167 ipr_log_vpd(&dev_entry->new_vpd);
1169 ipr_err("Cache Directory Card Information:\n");
1170 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
1172 ipr_err("Adapter Card Information:\n");
1173 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
1175 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1176 be32_to_cpu(dev_entry->ioa_data[0]),
1177 be32_to_cpu(dev_entry->ioa_data[1]),
1178 be32_to_cpu(dev_entry->ioa_data[2]),
1179 be32_to_cpu(dev_entry->ioa_data[3]),
1180 be32_to_cpu(dev_entry->ioa_data[4]));
1185 * ipr_log_enhanced_array_error - Log an array configuration error.
1186 * @ioa_cfg: ioa config struct
1187 * @hostrcb: hostrcb struct
1192 static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
1193 struct ipr_hostrcb *hostrcb)
1196 struct ipr_hostrcb_type_14_error *error;
1197 struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
1198 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1200 error = &hostrcb->hcam.u.error.u.type_14_error;
1204 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1205 error->protection_level,
1206 ioa_cfg->host->host_no,
1207 error->last_func_vset_res_addr.bus,
1208 error->last_func_vset_res_addr.target,
1209 error->last_func_vset_res_addr.lun);
1213 array_entry = error->array_member;
1214 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
1215 sizeof(error->array_member));
1217 for (i = 0; i < num_entries; i++, array_entry++) {
1218 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1221 if (be32_to_cpu(error->exposed_mode_adn) == i)
1222 ipr_err("Exposed Array Member %d:\n", i);
1224 ipr_err("Array Member %d:\n", i);
1226 ipr_log_ext_vpd(&array_entry->vpd);
1227 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1228 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1229 "Expected Location");
1236 * ipr_log_array_error - Log an array configuration error.
1237 * @ioa_cfg: ioa config struct
1238 * @hostrcb: hostrcb struct
1243 static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
1244 struct ipr_hostrcb *hostrcb)
1247 struct ipr_hostrcb_type_04_error *error;
1248 struct ipr_hostrcb_array_data_entry *array_entry;
1249 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1251 error = &hostrcb->hcam.u.error.u.type_04_error;
1255 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1256 error->protection_level,
1257 ioa_cfg->host->host_no,
1258 error->last_func_vset_res_addr.bus,
1259 error->last_func_vset_res_addr.target,
1260 error->last_func_vset_res_addr.lun);
1264 array_entry = error->array_member;
1266 for (i = 0; i < 18; i++) {
1267 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1270 if (be32_to_cpu(error->exposed_mode_adn) == i)
1271 ipr_err("Exposed Array Member %d:\n", i);
1273 ipr_err("Array Member %d:\n", i);
1275 ipr_log_vpd(&array_entry->vpd);
1277 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1278 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1279 "Expected Location");
1284 array_entry = error->array_member2;
1291 * ipr_log_hex_data - Log additional hex IOA error data.
1292 * @ioa_cfg: ioa config struct
1293 * @data: IOA error data
1299 static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len)
1306 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1307 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1309 for (i = 0; i < len / 4; i += 4) {
1310 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
1311 be32_to_cpu(data[i]),
1312 be32_to_cpu(data[i+1]),
1313 be32_to_cpu(data[i+2]),
1314 be32_to_cpu(data[i+3]));
1319 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1320 * @ioa_cfg: ioa config struct
1321 * @hostrcb: hostrcb struct
1326 static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1327 struct ipr_hostrcb *hostrcb)
1329 struct ipr_hostrcb_type_17_error *error;
1331 error = &hostrcb->hcam.u.error.u.type_17_error;
1332 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1333 strstrip(error->failure_reason);
1335 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1336 be32_to_cpu(hostrcb->hcam.u.error.prc));
1337 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd);
1338 ipr_log_hex_data(ioa_cfg, error->data,
1339 be32_to_cpu(hostrcb->hcam.length) -
1340 (offsetof(struct ipr_hostrcb_error, u) +
1341 offsetof(struct ipr_hostrcb_type_17_error, data)));
1345 * ipr_log_dual_ioa_error - Log a dual adapter error.
1346 * @ioa_cfg: ioa config struct
1347 * @hostrcb: hostrcb struct
1352 static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1353 struct ipr_hostrcb *hostrcb)
1355 struct ipr_hostrcb_type_07_error *error;
1357 error = &hostrcb->hcam.u.error.u.type_07_error;
1358 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1359 strstrip(error->failure_reason);
1361 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1362 be32_to_cpu(hostrcb->hcam.u.error.prc));
1363 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd);
1364 ipr_log_hex_data(ioa_cfg, error->data,
1365 be32_to_cpu(hostrcb->hcam.length) -
1366 (offsetof(struct ipr_hostrcb_error, u) +
1367 offsetof(struct ipr_hostrcb_type_07_error, data)));
1370 static const struct {
1373 } path_active_desc[] = {
1374 { IPR_PATH_NO_INFO, "Path" },
1375 { IPR_PATH_ACTIVE, "Active path" },
1376 { IPR_PATH_NOT_ACTIVE, "Inactive path" }
1379 static const struct {
1382 } path_state_desc[] = {
1383 { IPR_PATH_STATE_NO_INFO, "has no path state information available" },
1384 { IPR_PATH_HEALTHY, "is healthy" },
1385 { IPR_PATH_DEGRADED, "is degraded" },
1386 { IPR_PATH_FAILED, "is failed" }
1390 * ipr_log_fabric_path - Log a fabric path error
1391 * @hostrcb: hostrcb struct
1392 * @fabric: fabric descriptor
1397 static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
1398 struct ipr_hostrcb_fabric_desc *fabric)
1401 u8 path_state = fabric->path_state;
1402 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
1403 u8 state = path_state & IPR_PATH_STATE_MASK;
1405 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
1406 if (path_active_desc[i].active != active)
1409 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
1410 if (path_state_desc[j].state != state)
1413 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
1414 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
1415 path_active_desc[i].desc, path_state_desc[j].desc,
1417 } else if (fabric->cascaded_expander == 0xff) {
1418 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
1419 path_active_desc[i].desc, path_state_desc[j].desc,
1420 fabric->ioa_port, fabric->phy);
1421 } else if (fabric->phy == 0xff) {
1422 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
1423 path_active_desc[i].desc, path_state_desc[j].desc,
1424 fabric->ioa_port, fabric->cascaded_expander);
1426 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
1427 path_active_desc[i].desc, path_state_desc[j].desc,
1428 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1434 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
1435 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1438 static const struct {
1441 } path_type_desc[] = {
1442 { IPR_PATH_CFG_IOA_PORT, "IOA port" },
1443 { IPR_PATH_CFG_EXP_PORT, "Expander port" },
1444 { IPR_PATH_CFG_DEVICE_PORT, "Device port" },
1445 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
1448 static const struct {
1451 } path_status_desc[] = {
1452 { IPR_PATH_CFG_NO_PROB, "Functional" },
1453 { IPR_PATH_CFG_DEGRADED, "Degraded" },
1454 { IPR_PATH_CFG_FAILED, "Failed" },
1455 { IPR_PATH_CFG_SUSPECT, "Suspect" },
1456 { IPR_PATH_NOT_DETECTED, "Missing" },
1457 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
1460 static const char *link_rate[] = {
1463 "phy reset problem",
1480 * ipr_log_path_elem - Log a fabric path element.
1481 * @hostrcb: hostrcb struct
1482 * @cfg: fabric path element struct
1487 static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
1488 struct ipr_hostrcb_config_element *cfg)
1491 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
1492 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
1494 if (type == IPR_PATH_CFG_NOT_EXIST)
1497 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
1498 if (path_type_desc[i].type != type)
1501 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
1502 if (path_status_desc[j].status != status)
1505 if (type == IPR_PATH_CFG_IOA_PORT) {
1506 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
1507 path_status_desc[j].desc, path_type_desc[i].desc,
1508 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1509 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1511 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
1512 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
1513 path_status_desc[j].desc, path_type_desc[i].desc,
1514 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1515 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1516 } else if (cfg->cascaded_expander == 0xff) {
1517 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
1518 "WWN=%08X%08X\n", path_status_desc[j].desc,
1519 path_type_desc[i].desc, cfg->phy,
1520 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1521 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1522 } else if (cfg->phy == 0xff) {
1523 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
1524 "WWN=%08X%08X\n", path_status_desc[j].desc,
1525 path_type_desc[i].desc, cfg->cascaded_expander,
1526 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1527 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1529 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
1530 "WWN=%08X%08X\n", path_status_desc[j].desc,
1531 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
1532 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1533 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1540 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
1541 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
1542 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1543 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1547 * ipr_log_fabric_error - Log a fabric error.
1548 * @ioa_cfg: ioa config struct
1549 * @hostrcb: hostrcb struct
1554 static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
1555 struct ipr_hostrcb *hostrcb)
1557 struct ipr_hostrcb_type_20_error *error;
1558 struct ipr_hostrcb_fabric_desc *fabric;
1559 struct ipr_hostrcb_config_element *cfg;
1562 error = &hostrcb->hcam.u.error.u.type_20_error;
1563 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1564 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
1566 add_len = be32_to_cpu(hostrcb->hcam.length) -
1567 (offsetof(struct ipr_hostrcb_error, u) +
1568 offsetof(struct ipr_hostrcb_type_20_error, desc));
1570 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
1571 ipr_log_fabric_path(hostrcb, fabric);
1572 for_each_fabric_cfg(fabric, cfg)
1573 ipr_log_path_elem(hostrcb, cfg);
1575 add_len -= be16_to_cpu(fabric->length);
1576 fabric = (struct ipr_hostrcb_fabric_desc *)
1577 ((unsigned long)fabric + be16_to_cpu(fabric->length));
1580 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
1584 * ipr_log_generic_error - Log an adapter error.
1585 * @ioa_cfg: ioa config struct
1586 * @hostrcb: hostrcb struct
1591 static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
1592 struct ipr_hostrcb *hostrcb)
1594 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
1595 be32_to_cpu(hostrcb->hcam.length));
1599 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
1602 * This function will return the index of into the ipr_error_table
1603 * for the specified IOASC. If the IOASC is not in the table,
1604 * 0 will be returned, which points to the entry used for unknown errors.
1607 * index into the ipr_error_table
1609 static u32 ipr_get_error(u32 ioasc)
1613 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
1614 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
1621 * ipr_handle_log_data - Log an adapter error.
1622 * @ioa_cfg: ioa config struct
1623 * @hostrcb: hostrcb struct
1625 * This function logs an adapter error to the system.
1630 static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
1631 struct ipr_hostrcb *hostrcb)
1636 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
1639 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
1640 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
1642 ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc);
1644 if (ioasc == IPR_IOASC_BUS_WAS_RESET ||
1645 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER) {
1646 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
1647 scsi_report_bus_reset(ioa_cfg->host,
1648 hostrcb->hcam.u.error.failing_dev_res_addr.bus);
1651 error_index = ipr_get_error(ioasc);
1653 if (!ipr_error_table[error_index].log_hcam)
1656 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
1658 /* Set indication we have logged an error */
1659 ioa_cfg->errors_logged++;
1661 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
1663 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
1664 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
1666 switch (hostrcb->hcam.overlay_id) {
1667 case IPR_HOST_RCB_OVERLAY_ID_2:
1668 ipr_log_cache_error(ioa_cfg, hostrcb);
1670 case IPR_HOST_RCB_OVERLAY_ID_3:
1671 ipr_log_config_error(ioa_cfg, hostrcb);
1673 case IPR_HOST_RCB_OVERLAY_ID_4:
1674 case IPR_HOST_RCB_OVERLAY_ID_6:
1675 ipr_log_array_error(ioa_cfg, hostrcb);
1677 case IPR_HOST_RCB_OVERLAY_ID_7:
1678 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
1680 case IPR_HOST_RCB_OVERLAY_ID_12:
1681 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
1683 case IPR_HOST_RCB_OVERLAY_ID_13:
1684 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
1686 case IPR_HOST_RCB_OVERLAY_ID_14:
1687 case IPR_HOST_RCB_OVERLAY_ID_16:
1688 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
1690 case IPR_HOST_RCB_OVERLAY_ID_17:
1691 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
1693 case IPR_HOST_RCB_OVERLAY_ID_20:
1694 ipr_log_fabric_error(ioa_cfg, hostrcb);
1696 case IPR_HOST_RCB_OVERLAY_ID_1:
1697 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
1699 ipr_log_generic_error(ioa_cfg, hostrcb);
1705 * ipr_process_error - Op done function for an adapter error log.
1706 * @ipr_cmd: ipr command struct
1708 * This function is the op done function for an error log host
1709 * controlled async from the adapter. It will log the error and
1710 * send the HCAM back to the adapter.
1715 static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
1717 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1718 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
1719 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
1720 u32 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc);
1722 list_del(&hostrcb->queue);
1723 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
1726 ipr_handle_log_data(ioa_cfg, hostrcb);
1727 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
1728 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
1729 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) {
1730 dev_err(&ioa_cfg->pdev->dev,
1731 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1734 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
1738 * ipr_timeout - An internally generated op has timed out.
1739 * @ipr_cmd: ipr command struct
1741 * This function blocks host requests and initiates an
1747 static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
1749 unsigned long lock_flags = 0;
1750 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1753 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1755 ioa_cfg->errors_logged++;
1756 dev_err(&ioa_cfg->pdev->dev,
1757 "Adapter being reset due to command timeout.\n");
1759 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
1760 ioa_cfg->sdt_state = GET_DUMP;
1762 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
1763 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
1765 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1770 * ipr_oper_timeout - Adapter timed out transitioning to operational
1771 * @ipr_cmd: ipr command struct
1773 * This function blocks host requests and initiates an
1779 static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
1781 unsigned long lock_flags = 0;
1782 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1785 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1787 ioa_cfg->errors_logged++;
1788 dev_err(&ioa_cfg->pdev->dev,
1789 "Adapter timed out transitioning to operational.\n");
1791 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
1792 ioa_cfg->sdt_state = GET_DUMP;
1794 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
1796 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
1797 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
1800 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1805 * ipr_reset_reload - Reset/Reload the IOA
1806 * @ioa_cfg: ioa config struct
1807 * @shutdown_type: shutdown type
1809 * This function resets the adapter and re-initializes it.
1810 * This function assumes that all new host commands have been stopped.
1814 static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg,
1815 enum ipr_shutdown_type shutdown_type)
1817 if (!ioa_cfg->in_reset_reload)
1818 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
1820 spin_unlock_irq(ioa_cfg->host->host_lock);
1821 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
1822 spin_lock_irq(ioa_cfg->host->host_lock);
1824 /* If we got hit with a host reset while we were already resetting
1825 the adapter for some reason, and the reset failed. */
1826 if (ioa_cfg->ioa_is_dead) {
1835 * ipr_find_ses_entry - Find matching SES in SES table
1836 * @res: resource entry struct of SES
1839 * pointer to SES table entry / NULL on failure
1841 static const struct ipr_ses_table_entry *
1842 ipr_find_ses_entry(struct ipr_resource_entry *res)
1845 const struct ipr_ses_table_entry *ste = ipr_ses_table;
1847 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
1848 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
1849 if (ste->compare_product_id_byte[j] == 'X') {
1850 if (res->cfgte.std_inq_data.vpids.product_id[j] == ste->product_id[j])
1858 if (matches == IPR_PROD_ID_LEN)
1866 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
1867 * @ioa_cfg: ioa config struct
1869 * @bus_width: bus width
1872 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
1873 * For a 2-byte wide SCSI bus, the maximum transfer speed is
1874 * twice the maximum transfer rate (e.g. for a wide enabled bus,
1875 * max 160MHz = max 320MB/sec).
1877 static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
1879 struct ipr_resource_entry *res;
1880 const struct ipr_ses_table_entry *ste;
1881 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
1883 /* Loop through each config table entry in the config table buffer */
1884 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
1885 if (!(IPR_IS_SES_DEVICE(res->cfgte.std_inq_data)))
1888 if (bus != res->cfgte.res_addr.bus)
1891 if (!(ste = ipr_find_ses_entry(res)))
1894 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
1897 return max_xfer_rate;
1901 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
1902 * @ioa_cfg: ioa config struct
1903 * @max_delay: max delay in micro-seconds to wait
1905 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
1908 * 0 on success / other on failure
1910 static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
1912 volatile u32 pcii_reg;
1915 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
1916 while (delay < max_delay) {
1917 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
1919 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
1922 /* udelay cannot be used if delay is more than a few milliseconds */
1923 if ((delay / 1000) > MAX_UDELAY_MS)
1924 mdelay(delay / 1000);
1934 * ipr_get_ldump_data_section - Dump IOA memory
1935 * @ioa_cfg: ioa config struct
1936 * @start_addr: adapter address to dump
1937 * @dest: destination kernel buffer
1938 * @length_in_words: length to dump in 4 byte words
1941 * 0 on success / -EIO on failure
1943 static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
1945 __be32 *dest, u32 length_in_words)
1947 volatile u32 temp_pcii_reg;
1950 /* Write IOA interrupt reg starting LDUMP state */
1951 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
1952 ioa_cfg->regs.set_uproc_interrupt_reg);
1954 /* Wait for IO debug acknowledge */
1955 if (ipr_wait_iodbg_ack(ioa_cfg,
1956 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
1957 dev_err(&ioa_cfg->pdev->dev,
1958 "IOA dump long data transfer timeout\n");
1962 /* Signal LDUMP interlocked - clear IO debug ack */
1963 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
1964 ioa_cfg->regs.clr_interrupt_reg);
1966 /* Write Mailbox with starting address */
1967 writel(start_addr, ioa_cfg->ioa_mailbox);
1969 /* Signal address valid - clear IOA Reset alert */
1970 writel(IPR_UPROCI_RESET_ALERT,
1971 ioa_cfg->regs.clr_uproc_interrupt_reg);
1973 for (i = 0; i < length_in_words; i++) {
1974 /* Wait for IO debug acknowledge */
1975 if (ipr_wait_iodbg_ack(ioa_cfg,
1976 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
1977 dev_err(&ioa_cfg->pdev->dev,
1978 "IOA dump short data transfer timeout\n");
1982 /* Read data from mailbox and increment destination pointer */
1983 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
1986 /* For all but the last word of data, signal data received */
1987 if (i < (length_in_words - 1)) {
1988 /* Signal dump data received - Clear IO debug Ack */
1989 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
1990 ioa_cfg->regs.clr_interrupt_reg);
1994 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
1995 writel(IPR_UPROCI_RESET_ALERT,
1996 ioa_cfg->regs.set_uproc_interrupt_reg);
1998 writel(IPR_UPROCI_IO_DEBUG_ALERT,
1999 ioa_cfg->regs.clr_uproc_interrupt_reg);
2001 /* Signal dump data received - Clear IO debug Ack */
2002 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2003 ioa_cfg->regs.clr_interrupt_reg);
2005 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
2006 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
2008 readl(ioa_cfg->regs.sense_uproc_interrupt_reg);
2010 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
2020 #ifdef CONFIG_SCSI_IPR_DUMP
2022 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
2023 * @ioa_cfg: ioa config struct
2024 * @pci_address: adapter address
2025 * @length: length of data to copy
2027 * Copy data from PCI adapter to kernel buffer.
2028 * Note: length MUST be a 4 byte multiple
2030 * 0 on success / other on failure
2032 static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
2033 unsigned long pci_address, u32 length)
2035 int bytes_copied = 0;
2036 int cur_len, rc, rem_len, rem_page_len;
2038 unsigned long lock_flags = 0;
2039 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2041 while (bytes_copied < length &&
2042 (ioa_dump->hdr.len + bytes_copied) < IPR_MAX_IOA_DUMP_SIZE) {
2043 if (ioa_dump->page_offset >= PAGE_SIZE ||
2044 ioa_dump->page_offset == 0) {
2045 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2049 return bytes_copied;
2052 ioa_dump->page_offset = 0;
2053 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2054 ioa_dump->next_page_index++;
2056 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2058 rem_len = length - bytes_copied;
2059 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2060 cur_len = min(rem_len, rem_page_len);
2062 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2063 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2066 rc = ipr_get_ldump_data_section(ioa_cfg,
2067 pci_address + bytes_copied,
2068 &page[ioa_dump->page_offset / 4],
2069 (cur_len / sizeof(u32)));
2071 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2074 ioa_dump->page_offset += cur_len;
2075 bytes_copied += cur_len;
2083 return bytes_copied;
2087 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
2088 * @hdr: dump entry header struct
2093 static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
2095 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
2097 hdr->offset = sizeof(*hdr);
2098 hdr->status = IPR_DUMP_STATUS_SUCCESS;
2102 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
2103 * @ioa_cfg: ioa config struct
2104 * @driver_dump: driver dump struct
2109 static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
2110 struct ipr_driver_dump *driver_dump)
2112 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2114 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
2115 driver_dump->ioa_type_entry.hdr.len =
2116 sizeof(struct ipr_dump_ioa_type_entry) -
2117 sizeof(struct ipr_dump_entry_header);
2118 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2119 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
2120 driver_dump->ioa_type_entry.type = ioa_cfg->type;
2121 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
2122 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
2123 ucode_vpd->minor_release[1];
2124 driver_dump->hdr.num_entries++;
2128 * ipr_dump_version_data - Fill in the driver version in the dump.
2129 * @ioa_cfg: ioa config struct
2130 * @driver_dump: driver dump struct
2135 static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
2136 struct ipr_driver_dump *driver_dump)
2138 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
2139 driver_dump->version_entry.hdr.len =
2140 sizeof(struct ipr_dump_version_entry) -
2141 sizeof(struct ipr_dump_entry_header);
2142 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2143 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
2144 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
2145 driver_dump->hdr.num_entries++;
2149 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
2150 * @ioa_cfg: ioa config struct
2151 * @driver_dump: driver dump struct
2156 static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
2157 struct ipr_driver_dump *driver_dump)
2159 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
2160 driver_dump->trace_entry.hdr.len =
2161 sizeof(struct ipr_dump_trace_entry) -
2162 sizeof(struct ipr_dump_entry_header);
2163 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2164 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
2165 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
2166 driver_dump->hdr.num_entries++;
2170 * ipr_dump_location_data - Fill in the IOA location in the dump.
2171 * @ioa_cfg: ioa config struct
2172 * @driver_dump: driver dump struct
2177 static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
2178 struct ipr_driver_dump *driver_dump)
2180 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
2181 driver_dump->location_entry.hdr.len =
2182 sizeof(struct ipr_dump_location_entry) -
2183 sizeof(struct ipr_dump_entry_header);
2184 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2185 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
2186 strcpy(driver_dump->location_entry.location, ioa_cfg->pdev->dev.bus_id);
2187 driver_dump->hdr.num_entries++;
2191 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
2192 * @ioa_cfg: ioa config struct
2193 * @dump: dump struct
2198 static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
2200 unsigned long start_addr, sdt_word;
2201 unsigned long lock_flags = 0;
2202 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
2203 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
2204 u32 num_entries, start_off, end_off;
2205 u32 bytes_to_copy, bytes_copied, rc;
2206 struct ipr_sdt *sdt;
2211 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2213 if (ioa_cfg->sdt_state != GET_DUMP) {
2214 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2218 start_addr = readl(ioa_cfg->ioa_mailbox);
2220 if (!ipr_sdt_is_fmt2(start_addr)) {
2221 dev_err(&ioa_cfg->pdev->dev,
2222 "Invalid dump table format: %lx\n", start_addr);
2223 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2227 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
2229 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
2231 /* Initialize the overall dump header */
2232 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
2233 driver_dump->hdr.num_entries = 1;
2234 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
2235 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
2236 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
2237 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
2239 ipr_dump_version_data(ioa_cfg, driver_dump);
2240 ipr_dump_location_data(ioa_cfg, driver_dump);
2241 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
2242 ipr_dump_trace_data(ioa_cfg, driver_dump);
2244 /* Update dump_header */
2245 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
2247 /* IOA Dump entry */
2248 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
2249 ioa_dump->format = IPR_SDT_FMT2;
2250 ioa_dump->hdr.len = 0;
2251 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2252 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
2254 /* First entries in sdt are actually a list of dump addresses and
2255 lengths to gather the real dump data. sdt represents the pointer
2256 to the ioa generated dump table. Dump data will be extracted based
2257 on entries in this table */
2258 sdt = &ioa_dump->sdt;
2260 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
2261 sizeof(struct ipr_sdt) / sizeof(__be32));
2263 /* Smart Dump table is ready to use and the first entry is valid */
2264 if (rc || (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE)) {
2265 dev_err(&ioa_cfg->pdev->dev,
2266 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
2267 rc, be32_to_cpu(sdt->hdr.state));
2268 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
2269 ioa_cfg->sdt_state = DUMP_OBTAINED;
2270 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2274 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
2276 if (num_entries > IPR_NUM_SDT_ENTRIES)
2277 num_entries = IPR_NUM_SDT_ENTRIES;
2279 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2281 for (i = 0; i < num_entries; i++) {
2282 if (ioa_dump->hdr.len > IPR_MAX_IOA_DUMP_SIZE) {
2283 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
2287 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
2288 sdt_word = be32_to_cpu(sdt->entry[i].bar_str_offset);
2289 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
2290 end_off = be32_to_cpu(sdt->entry[i].end_offset);
2292 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word) {
2293 bytes_to_copy = end_off - start_off;
2294 if (bytes_to_copy > IPR_MAX_IOA_DUMP_SIZE) {
2295 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
2299 /* Copy data from adapter to driver buffers */
2300 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
2303 ioa_dump->hdr.len += bytes_copied;
2305 if (bytes_copied != bytes_to_copy) {
2306 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
2313 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
2315 /* Update dump_header */
2316 driver_dump->hdr.len += ioa_dump->hdr.len;
2318 ioa_cfg->sdt_state = DUMP_OBTAINED;
2323 #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0)
2327 * ipr_release_dump - Free adapter dump memory
2328 * @kref: kref struct
2333 static void ipr_release_dump(struct kref *kref)
2335 struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref);
2336 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
2337 unsigned long lock_flags = 0;
2341 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2342 ioa_cfg->dump = NULL;
2343 ioa_cfg->sdt_state = INACTIVE;
2344 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2346 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
2347 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
2354 * ipr_worker_thread - Worker thread
2355 * @work: ioa config struct
2357 * Called at task level from a work thread. This function takes care
2358 * of adding and removing device from the mid-layer as configuration
2359 * changes are detected by the adapter.
2364 static void ipr_worker_thread(struct work_struct *work)
2366 unsigned long lock_flags;
2367 struct ipr_resource_entry *res;
2368 struct scsi_device *sdev;
2369 struct ipr_dump *dump;
2370 struct ipr_ioa_cfg *ioa_cfg =
2371 container_of(work, struct ipr_ioa_cfg, work_q);
2372 u8 bus, target, lun;
2376 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2378 if (ioa_cfg->sdt_state == GET_DUMP) {
2379 dump = ioa_cfg->dump;
2381 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2384 kref_get(&dump->kref);
2385 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2386 ipr_get_ioa_dump(ioa_cfg, dump);
2387 kref_put(&dump->kref, ipr_release_dump);
2389 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2390 if (ioa_cfg->sdt_state == DUMP_OBTAINED)
2391 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2392 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2399 if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) {
2400 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2404 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
2405 if (res->del_from_ml && res->sdev) {
2408 if (!scsi_device_get(sdev)) {
2409 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
2410 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2411 scsi_remove_device(sdev);
2412 scsi_device_put(sdev);
2413 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2420 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
2421 if (res->add_to_ml) {
2422 bus = res->cfgte.res_addr.bus;
2423 target = res->cfgte.res_addr.target;
2424 lun = res->cfgte.res_addr.lun;
2426 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2427 scsi_add_device(ioa_cfg->host, bus, target, lun);
2428 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2433 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2434 kobject_uevent(&ioa_cfg->host->shost_classdev.kobj, KOBJ_CHANGE);
2438 #ifdef CONFIG_SCSI_IPR_TRACE
2440 * ipr_read_trace - Dump the adapter trace
2441 * @kobj: kobject struct
2442 * @bin_attr: bin_attribute struct
2445 * @count: buffer size
2448 * number of bytes printed to buffer
2450 static ssize_t ipr_read_trace(struct kobject *kobj,
2451 struct bin_attribute *bin_attr,
2452 char *buf, loff_t off, size_t count)
2454 struct class_device *cdev = container_of(kobj,struct class_device,kobj);
2455 struct Scsi_Host *shost = class_to_shost(cdev);
2456 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2457 unsigned long lock_flags = 0;
2458 int size = IPR_TRACE_SIZE;
2459 char *src = (char *)ioa_cfg->trace;
2463 if (off + count > size) {
2468 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2469 memcpy(buf, &src[off], count);
2470 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2474 static struct bin_attribute ipr_trace_attr = {
2480 .read = ipr_read_trace,
2484 static const struct {
2485 enum ipr_cache_state state;
2487 } cache_state [] = {
2488 { CACHE_NONE, "none" },
2489 { CACHE_DISABLED, "disabled" },
2490 { CACHE_ENABLED, "enabled" }
2494 * ipr_show_write_caching - Show the write caching attribute
2495 * @class_dev: class device struct
2499 * number of bytes printed to buffer
2501 static ssize_t ipr_show_write_caching(struct class_device *class_dev, char *buf)
2503 struct Scsi_Host *shost = class_to_shost(class_dev);
2504 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2505 unsigned long lock_flags = 0;
2508 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2509 for (i = 0; i < ARRAY_SIZE(cache_state); i++) {
2510 if (cache_state[i].state == ioa_cfg->cache_state) {
2511 len = snprintf(buf, PAGE_SIZE, "%s\n", cache_state[i].name);
2515 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2521 * ipr_store_write_caching - Enable/disable adapter write cache
2522 * @class_dev: class_device struct
2524 * @count: buffer size
2526 * This function will enable/disable adapter write cache.
2529 * count on success / other on failure
2531 static ssize_t ipr_store_write_caching(struct class_device *class_dev,
2532 const char *buf, size_t count)
2534 struct Scsi_Host *shost = class_to_shost(class_dev);
2535 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2536 unsigned long lock_flags = 0;
2537 enum ipr_cache_state new_state = CACHE_INVALID;
2540 if (!capable(CAP_SYS_ADMIN))
2542 if (ioa_cfg->cache_state == CACHE_NONE)
2545 for (i = 0; i < ARRAY_SIZE(cache_state); i++) {
2546 if (!strncmp(cache_state[i].name, buf, strlen(cache_state[i].name))) {
2547 new_state = cache_state[i].state;
2552 if (new_state != CACHE_DISABLED && new_state != CACHE_ENABLED)
2555 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2556 if (ioa_cfg->cache_state == new_state) {
2557 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2561 ioa_cfg->cache_state = new_state;
2562 dev_info(&ioa_cfg->pdev->dev, "%s adapter write cache.\n",
2563 new_state == CACHE_ENABLED ? "Enabling" : "Disabling");
2564 if (!ioa_cfg->in_reset_reload)
2565 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
2566 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2567 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2572 static struct class_device_attribute ipr_ioa_cache_attr = {
2574 .name = "write_cache",
2575 .mode = S_IRUGO | S_IWUSR,
2577 .show = ipr_show_write_caching,
2578 .store = ipr_store_write_caching
2582 * ipr_show_fw_version - Show the firmware version
2583 * @class_dev: class device struct
2587 * number of bytes printed to buffer
2589 static ssize_t ipr_show_fw_version(struct class_device *class_dev, char *buf)
2591 struct Scsi_Host *shost = class_to_shost(class_dev);
2592 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2593 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2594 unsigned long lock_flags = 0;
2597 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2598 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
2599 ucode_vpd->major_release, ucode_vpd->card_type,
2600 ucode_vpd->minor_release[0],
2601 ucode_vpd->minor_release[1]);
2602 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2606 static struct class_device_attribute ipr_fw_version_attr = {
2608 .name = "fw_version",
2611 .show = ipr_show_fw_version,
2615 * ipr_show_log_level - Show the adapter's error logging level
2616 * @class_dev: class device struct
2620 * number of bytes printed to buffer
2622 static ssize_t ipr_show_log_level(struct class_device *class_dev, char *buf)
2624 struct Scsi_Host *shost = class_to_shost(class_dev);
2625 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2626 unsigned long lock_flags = 0;
2629 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2630 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
2631 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2636 * ipr_store_log_level - Change the adapter's error logging level
2637 * @class_dev: class device struct
2641 * number of bytes printed to buffer
2643 static ssize_t ipr_store_log_level(struct class_device *class_dev,
2644 const char *buf, size_t count)
2646 struct Scsi_Host *shost = class_to_shost(class_dev);
2647 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2648 unsigned long lock_flags = 0;
2650 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2651 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
2652 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2656 static struct class_device_attribute ipr_log_level_attr = {
2658 .name = "log_level",
2659 .mode = S_IRUGO | S_IWUSR,
2661 .show = ipr_show_log_level,
2662 .store = ipr_store_log_level
2666 * ipr_store_diagnostics - IOA Diagnostics interface
2667 * @class_dev: class_device struct
2669 * @count: buffer size
2671 * This function will reset the adapter and wait a reasonable
2672 * amount of time for any errors that the adapter might log.
2675 * count on success / other on failure
2677 static ssize_t ipr_store_diagnostics(struct class_device *class_dev,
2678 const char *buf, size_t count)
2680 struct Scsi_Host *shost = class_to_shost(class_dev);
2681 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2682 unsigned long lock_flags = 0;
2685 if (!capable(CAP_SYS_ADMIN))
2688 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2689 while(ioa_cfg->in_reset_reload) {
2690 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2691 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2692 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2695 ioa_cfg->errors_logged = 0;
2696 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
2698 if (ioa_cfg->in_reset_reload) {
2699 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2700 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2702 /* Wait for a second for any errors to be logged */
2705 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2709 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2710 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
2712 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2717 static struct class_device_attribute ipr_diagnostics_attr = {
2719 .name = "run_diagnostics",
2722 .store = ipr_store_diagnostics
2726 * ipr_show_adapter_state - Show the adapter's state
2727 * @class_dev: class device struct
2731 * number of bytes printed to buffer
2733 static ssize_t ipr_show_adapter_state(struct class_device *class_dev, char *buf)
2735 struct Scsi_Host *shost = class_to_shost(class_dev);
2736 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2737 unsigned long lock_flags = 0;
2740 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2741 if (ioa_cfg->ioa_is_dead)
2742 len = snprintf(buf, PAGE_SIZE, "offline\n");
2744 len = snprintf(buf, PAGE_SIZE, "online\n");
2745 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2750 * ipr_store_adapter_state - Change adapter state
2751 * @class_dev: class_device struct
2753 * @count: buffer size
2755 * This function will change the adapter's state.
2758 * count on success / other on failure
2760 static ssize_t ipr_store_adapter_state(struct class_device *class_dev,
2761 const char *buf, size_t count)
2763 struct Scsi_Host *shost = class_to_shost(class_dev);
2764 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2765 unsigned long lock_flags;
2768 if (!capable(CAP_SYS_ADMIN))
2771 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2772 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) {
2773 ioa_cfg->ioa_is_dead = 0;
2774 ioa_cfg->reset_retries = 0;
2775 ioa_cfg->in_ioa_bringdown = 0;
2776 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2778 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2779 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2784 static struct class_device_attribute ipr_ioa_state_attr = {
2787 .mode = S_IRUGO | S_IWUSR,
2789 .show = ipr_show_adapter_state,
2790 .store = ipr_store_adapter_state
2794 * ipr_store_reset_adapter - Reset the adapter
2795 * @class_dev: class_device struct
2797 * @count: buffer size
2799 * This function will reset the adapter.
2802 * count on success / other on failure
2804 static ssize_t ipr_store_reset_adapter(struct class_device *class_dev,
2805 const char *buf, size_t count)
2807 struct Scsi_Host *shost = class_to_shost(class_dev);
2808 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2809 unsigned long lock_flags;
2812 if (!capable(CAP_SYS_ADMIN))
2815 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2816 if (!ioa_cfg->in_reset_reload)
2817 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
2818 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2819 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2824 static struct class_device_attribute ipr_ioa_reset_attr = {
2826 .name = "reset_host",
2829 .store = ipr_store_reset_adapter
2833 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
2834 * @buf_len: buffer length
2836 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
2837 * list to use for microcode download
2840 * pointer to sglist / NULL on failure
2842 static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
2844 int sg_size, order, bsize_elem, num_elem, i, j;
2845 struct ipr_sglist *sglist;
2846 struct scatterlist *scatterlist;
2849 /* Get the minimum size per scatter/gather element */
2850 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
2852 /* Get the actual size per element */
2853 order = get_order(sg_size);
2855 /* Determine the actual number of bytes per element */
2856 bsize_elem = PAGE_SIZE * (1 << order);
2858 /* Determine the actual number of sg entries needed */
2859 if (buf_len % bsize_elem)
2860 num_elem = (buf_len / bsize_elem) + 1;
2862 num_elem = buf_len / bsize_elem;
2864 /* Allocate a scatter/gather list for the DMA */
2865 sglist = kzalloc(sizeof(struct ipr_sglist) +
2866 (sizeof(struct scatterlist) * (num_elem - 1)),
2869 if (sglist == NULL) {
2874 scatterlist = sglist->scatterlist;
2875 sg_init_table(scatterlist, num_elem);
2877 sglist->order = order;
2878 sglist->num_sg = num_elem;
2880 /* Allocate a bunch of sg elements */
2881 for (i = 0; i < num_elem; i++) {
2882 page = alloc_pages(GFP_KERNEL, order);
2886 /* Free up what we already allocated */
2887 for (j = i - 1; j >= 0; j--)
2888 __free_pages(sg_page(&scatterlist[j]), order);
2893 sg_set_page(&scatterlist[i], page, 0, 0);
2900 * ipr_free_ucode_buffer - Frees a microcode download buffer
2901 * @p_dnld: scatter/gather list pointer
2903 * Free a DMA'able ucode download buffer previously allocated with
2904 * ipr_alloc_ucode_buffer
2909 static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
2913 for (i = 0; i < sglist->num_sg; i++)
2914 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
2920 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
2921 * @sglist: scatter/gather list pointer
2922 * @buffer: buffer pointer
2923 * @len: buffer length
2925 * Copy a microcode image from a user buffer into a buffer allocated by
2926 * ipr_alloc_ucode_buffer
2929 * 0 on success / other on failure
2931 static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
2932 u8 *buffer, u32 len)
2934 int bsize_elem, i, result = 0;
2935 struct scatterlist *scatterlist;
2938 /* Determine the actual number of bytes per element */
2939 bsize_elem = PAGE_SIZE * (1 << sglist->order);
2941 scatterlist = sglist->scatterlist;
2943 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
2944 struct page *page = sg_page(&scatterlist[i]);
2947 memcpy(kaddr, buffer, bsize_elem);
2950 scatterlist[i].length = bsize_elem;
2958 if (len % bsize_elem) {
2959 struct page *page = sg_page(&scatterlist[i]);
2962 memcpy(kaddr, buffer, len % bsize_elem);
2965 scatterlist[i].length = len % bsize_elem;
2968 sglist->buffer_len = len;
2973 * ipr_build_ucode_ioadl - Build a microcode download IOADL
2974 * @ipr_cmd: ipr command struct
2975 * @sglist: scatter/gather list
2977 * Builds a microcode download IOA data list (IOADL).
2980 static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
2981 struct ipr_sglist *sglist)
2983 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
2984 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
2985 struct scatterlist *scatterlist = sglist->scatterlist;
2988 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
2989 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
2990 ioarcb->write_data_transfer_length = cpu_to_be32(sglist->buffer_len);
2991 ioarcb->write_ioadl_len =
2992 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
2994 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
2995 ioadl[i].flags_and_data_len =
2996 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
2998 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3001 ioadl[i-1].flags_and_data_len |=
3002 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3006 * ipr_update_ioa_ucode - Update IOA's microcode
3007 * @ioa_cfg: ioa config struct
3008 * @sglist: scatter/gather list
3010 * Initiate an adapter reset to update the IOA's microcode
3013 * 0 on success / -EIO on failure
3015 static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3016 struct ipr_sglist *sglist)
3018 unsigned long lock_flags;
3020 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3021 while(ioa_cfg->in_reset_reload) {
3022 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3023 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3024 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3027 if (ioa_cfg->ucode_sglist) {
3028 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3029 dev_err(&ioa_cfg->pdev->dev,
3030 "Microcode download already in progress\n");
3034 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist,
3035 sglist->num_sg, DMA_TO_DEVICE);
3037 if (!sglist->num_dma_sg) {
3038 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3039 dev_err(&ioa_cfg->pdev->dev,
3040 "Failed to map microcode download buffer!\n");
3044 ioa_cfg->ucode_sglist = sglist;
3045 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3046 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3047 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3049 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3050 ioa_cfg->ucode_sglist = NULL;
3051 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3056 * ipr_store_update_fw - Update the firmware on the adapter
3057 * @class_dev: class_device struct
3059 * @count: buffer size
3061 * This function will update the firmware on the adapter.
3064 * count on success / other on failure
3066 static ssize_t ipr_store_update_fw(struct class_device *class_dev,
3067 const char *buf, size_t count)
3069 struct Scsi_Host *shost = class_to_shost(class_dev);
3070 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3071 struct ipr_ucode_image_header *image_hdr;
3072 const struct firmware *fw_entry;
3073 struct ipr_sglist *sglist;
3076 int len, result, dnld_size;
3078 if (!capable(CAP_SYS_ADMIN))
3081 len = snprintf(fname, 99, "%s", buf);
3082 fname[len-1] = '\0';
3084 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
3085 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
3089 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
3091 if (be32_to_cpu(image_hdr->header_length) > fw_entry->size ||
3092 (ioa_cfg->vpd_cbs->page3_data.card_type &&
3093 ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) {
3094 dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n");
3095 release_firmware(fw_entry);
3099 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
3100 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
3101 sglist = ipr_alloc_ucode_buffer(dnld_size);
3104 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
3105 release_firmware(fw_entry);
3109 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
3112 dev_err(&ioa_cfg->pdev->dev,
3113 "Microcode buffer copy to DMA buffer failed\n");
3117 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
3122 ipr_free_ucode_buffer(sglist);
3123 release_firmware(fw_entry);
3127 static struct class_device_attribute ipr_update_fw_attr = {
3129 .name = "update_fw",
3132 .store = ipr_store_update_fw
3135 static struct class_device_attribute *ipr_ioa_attrs[] = {
3136 &ipr_fw_version_attr,
3137 &ipr_log_level_attr,
3138 &ipr_diagnostics_attr,
3139 &ipr_ioa_state_attr,
3140 &ipr_ioa_reset_attr,
3141 &ipr_update_fw_attr,
3142 &ipr_ioa_cache_attr,
3146 #ifdef CONFIG_SCSI_IPR_DUMP
3148 * ipr_read_dump - Dump the adapter
3149 * @kobj: kobject struct
3150 * @bin_attr: bin_attribute struct
3153 * @count: buffer size
3156 * number of bytes printed to buffer
3158 static ssize_t ipr_read_dump(struct kobject *kobj,
3159 struct bin_attribute *bin_attr,
3160 char *buf, loff_t off, size_t count)
3162 struct class_device *cdev = container_of(kobj,struct class_device,kobj);
3163 struct Scsi_Host *shost = class_to_shost(cdev);
3164 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3165 struct ipr_dump *dump;
3166 unsigned long lock_flags = 0;
3171 if (!capable(CAP_SYS_ADMIN))
3174 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3175 dump = ioa_cfg->dump;
3177 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
3178 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3181 kref_get(&dump->kref);
3182 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3184 if (off > dump->driver_dump.hdr.len) {
3185 kref_put(&dump->kref, ipr_release_dump);
3189 if (off + count > dump->driver_dump.hdr.len) {
3190 count = dump->driver_dump.hdr.len - off;
3194 if (count && off < sizeof(dump->driver_dump)) {
3195 if (off + count > sizeof(dump->driver_dump))
3196 len = sizeof(dump->driver_dump) - off;
3199 src = (u8 *)&dump->driver_dump + off;
3200 memcpy(buf, src, len);
3206 off -= sizeof(dump->driver_dump);
3208 if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) {
3209 if (off + count > offsetof(struct ipr_ioa_dump, ioa_data))
3210 len = offsetof(struct ipr_ioa_dump, ioa_data) - off;
3213 src = (u8 *)&dump->ioa_dump + off;
3214 memcpy(buf, src, len);
3220 off -= offsetof(struct ipr_ioa_dump, ioa_data);
3223 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
3224 len = PAGE_ALIGN(off) - off;
3227 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
3228 src += off & ~PAGE_MASK;
3229 memcpy(buf, src, len);
3235 kref_put(&dump->kref, ipr_release_dump);
3240 * ipr_alloc_dump - Prepare for adapter dump
3241 * @ioa_cfg: ioa config struct
3244 * 0 on success / other on failure
3246 static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
3248 struct ipr_dump *dump;
3249 unsigned long lock_flags = 0;
3251 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
3254 ipr_err("Dump memory allocation failed\n");
3258 kref_init(&dump->kref);
3259 dump->ioa_cfg = ioa_cfg;
3261 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3263 if (INACTIVE != ioa_cfg->sdt_state) {
3264 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3269 ioa_cfg->dump = dump;
3270 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
3271 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) {
3272 ioa_cfg->dump_taken = 1;
3273 schedule_work(&ioa_cfg->work_q);
3275 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3281 * ipr_free_dump - Free adapter dump memory
3282 * @ioa_cfg: ioa config struct
3285 * 0 on success / other on failure
3287 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
3289 struct ipr_dump *dump;
3290 unsigned long lock_flags = 0;
3294 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3295 dump = ioa_cfg->dump;
3297 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3301 ioa_cfg->dump = NULL;
3302 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3304 kref_put(&dump->kref, ipr_release_dump);
3311 * ipr_write_dump - Setup dump state of adapter
3312 * @kobj: kobject struct
3313 * @bin_attr: bin_attribute struct
3316 * @count: buffer size
3319 * number of bytes printed to buffer
3321 static ssize_t ipr_write_dump(struct kobject *kobj,
3322 struct bin_attribute *bin_attr,
3323 char *buf, loff_t off, size_t count)
3325 struct class_device *cdev = container_of(kobj,struct class_device,kobj);
3326 struct Scsi_Host *shost = class_to_shost(cdev);
3327 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3330 if (!capable(CAP_SYS_ADMIN))
3334 rc = ipr_alloc_dump(ioa_cfg);
3335 else if (buf[0] == '0')
3336 rc = ipr_free_dump(ioa_cfg);
3346 static struct bin_attribute ipr_dump_attr = {
3349 .mode = S_IRUSR | S_IWUSR,
3352 .read = ipr_read_dump,
3353 .write = ipr_write_dump
3356 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
3360 * ipr_change_queue_depth - Change the device's queue depth
3361 * @sdev: scsi device struct
3362 * @qdepth: depth to set
3367 static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth)
3369 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
3370 struct ipr_resource_entry *res;
3371 unsigned long lock_flags = 0;
3373 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3374 res = (struct ipr_resource_entry *)sdev->hostdata;
3376 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
3377 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
3378 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3380 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
3381 return sdev->queue_depth;
3385 * ipr_change_queue_type - Change the device's queue type
3386 * @dsev: scsi device struct
3387 * @tag_type: type of tags to use
3390 * actual queue type set
3392 static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type)
3394 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
3395 struct ipr_resource_entry *res;
3396 unsigned long lock_flags = 0;
3398 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3399 res = (struct ipr_resource_entry *)sdev->hostdata;
3402 if (ipr_is_gscsi(res) && sdev->tagged_supported) {
3404 * We don't bother quiescing the device here since the
3405 * adapter firmware does it for us.
3407 scsi_set_tag_type(sdev, tag_type);
3410 scsi_activate_tcq(sdev, sdev->queue_depth);
3412 scsi_deactivate_tcq(sdev, sdev->queue_depth);
3418 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3423 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
3424 * @dev: device struct
3428 * number of bytes printed to buffer
3430 static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
3432 struct scsi_device *sdev = to_scsi_device(dev);
3433 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
3434 struct ipr_resource_entry *res;
3435 unsigned long lock_flags = 0;
3436 ssize_t len = -ENXIO;
3438 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3439 res = (struct ipr_resource_entry *)sdev->hostdata;
3441 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->cfgte.res_handle);
3442 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3446 static struct device_attribute ipr_adapter_handle_attr = {
3448 .name = "adapter_handle",
3451 .show = ipr_show_adapter_handle
3454 static struct device_attribute *ipr_dev_attrs[] = {
3455 &ipr_adapter_handle_attr,
3460 * ipr_biosparam - Return the HSC mapping
3461 * @sdev: scsi device struct
3462 * @block_device: block device pointer
3463 * @capacity: capacity of the device
3464 * @parm: Array containing returned HSC values.
3466 * This function generates the HSC parms that fdisk uses.
3467 * We want to make sure we return something that places partitions
3468 * on 4k boundaries for best performance with the IOA.
3473 static int ipr_biosparam(struct scsi_device *sdev,
3474 struct block_device *block_device,
3475 sector_t capacity, int *parm)
3483 cylinders = capacity;
3484 sector_div(cylinders, (128 * 32));
3489 parm[2] = cylinders;
3495 * ipr_find_starget - Find target based on bus/target.
3496 * @starget: scsi target struct
3499 * resource entry pointer if found / NULL if not found
3501 static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
3503 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
3504 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
3505 struct ipr_resource_entry *res;
3507 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3508 if ((res->cfgte.res_addr.bus == starget->channel) &&
3509 (res->cfgte.res_addr.target == starget->id) &&
3510 (res->cfgte.res_addr.lun == 0)) {
3518 static struct ata_port_info sata_port_info;
3521 * ipr_target_alloc - Prepare for commands to a SCSI target
3522 * @starget: scsi target struct
3524 * If the device is a SATA device, this function allocates an
3525 * ATA port with libata, else it does nothing.
3528 * 0 on success / non-0 on failure
3530 static int ipr_target_alloc(struct scsi_target *starget)
3532 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
3533 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
3534 struct ipr_sata_port *sata_port;
3535 struct ata_port *ap;
3536 struct ipr_resource_entry *res;
3537 unsigned long lock_flags;
3539 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3540 res = ipr_find_starget(starget);
3541 starget->hostdata = NULL;
3543 if (res && ipr_is_gata(res)) {
3544 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3545 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
3549 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
3551 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3552 sata_port->ioa_cfg = ioa_cfg;
3554 sata_port->res = res;
3556 res->sata_port = sata_port;
3557 ap->private_data = sata_port;
3558 starget->hostdata = sata_port;
3564 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3570 * ipr_target_destroy - Destroy a SCSI target
3571 * @starget: scsi target struct
3573 * If the device was a SATA device, this function frees the libata
3574 * ATA port, else it does nothing.
3577 static void ipr_target_destroy(struct scsi_target *starget)
3579 struct ipr_sata_port *sata_port = starget->hostdata;
3582 starget->hostdata = NULL;
3583 ata_sas_port_destroy(sata_port->ap);
3589 * ipr_find_sdev - Find device based on bus/target/lun.
3590 * @sdev: scsi device struct
3593 * resource entry pointer if found / NULL if not found
3595 static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
3597 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3598 struct ipr_resource_entry *res;
3600 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3601 if ((res->cfgte.res_addr.bus == sdev->channel) &&
3602 (res->cfgte.res_addr.target == sdev->id) &&
3603 (res->cfgte.res_addr.lun == sdev->lun))
3611 * ipr_slave_destroy - Unconfigure a SCSI device
3612 * @sdev: scsi device struct
3617 static void ipr_slave_destroy(struct scsi_device *sdev)
3619 struct ipr_resource_entry *res;
3620 struct ipr_ioa_cfg *ioa_cfg;
3621 unsigned long lock_flags = 0;
3623 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3625 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3626 res = (struct ipr_resource_entry *) sdev->hostdata;
3629 ata_port_disable(res->sata_port->ap);
3630 sdev->hostdata = NULL;
3632 res->sata_port = NULL;
3634 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3638 * ipr_slave_configure - Configure a SCSI device
3639 * @sdev: scsi device struct
3641 * This function configures the specified scsi device.
3646 static int ipr_slave_configure(struct scsi_device *sdev)
3648 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3649 struct ipr_resource_entry *res;
3650 unsigned long lock_flags = 0;
3652 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3653 res = sdev->hostdata;
3655 if (ipr_is_af_dasd_device(res))
3656 sdev->type = TYPE_RAID;
3657 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
3658 sdev->scsi_level = 4;
3659 sdev->no_uld_attach = 1;
3661 if (ipr_is_vset_device(res)) {
3662 sdev->timeout = IPR_VSET_RW_TIMEOUT;
3663 blk_queue_max_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
3665 if (ipr_is_vset_device(res) || ipr_is_scsi_disk(res))
3666 sdev->allow_restart = 1;
3667 if (ipr_is_gata(res) && res->sata_port) {
3668 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN);
3669 ata_sas_slave_configure(sdev, res->sata_port->ap);
3671 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
3674 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3679 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
3680 * @sdev: scsi device struct
3682 * This function initializes an ATA port so that future commands
3683 * sent through queuecommand will work.
3688 static int ipr_ata_slave_alloc(struct scsi_device *sdev)
3690 struct ipr_sata_port *sata_port = NULL;
3694 if (sdev->sdev_target)
3695 sata_port = sdev->sdev_target->hostdata;
3697 rc = ata_sas_port_init(sata_port->ap);
3699 ipr_slave_destroy(sdev);
3706 * ipr_slave_alloc - Prepare for commands to a device.
3707 * @sdev: scsi device struct
3709 * This function saves a pointer to the resource entry
3710 * in the scsi device struct if the device exists. We
3711 * can then use this pointer in ipr_queuecommand when
3712 * handling new commands.
3715 * 0 on success / -ENXIO if device does not exist
3717 static int ipr_slave_alloc(struct scsi_device *sdev)
3719 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3720 struct ipr_resource_entry *res;
3721 unsigned long lock_flags;
3724 sdev->hostdata = NULL;
3726 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3728 res = ipr_find_sdev(sdev);
3733 sdev->hostdata = res;
3734 if (!ipr_is_naca_model(res))
3735 res->needs_sync_complete = 1;
3737 if (ipr_is_gata(res)) {
3738 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3739 return ipr_ata_slave_alloc(sdev);
3743 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3749 * ipr_eh_host_reset - Reset the host adapter
3750 * @scsi_cmd: scsi command struct
3755 static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd)
3757 struct ipr_ioa_cfg *ioa_cfg;
3761 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
3763 dev_err(&ioa_cfg->pdev->dev,
3764 "Adapter being reset as a result of error recovery.\n");
3766 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
3767 ioa_cfg->sdt_state = GET_DUMP;
3769 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV);
3775 static int ipr_eh_host_reset(struct scsi_cmnd * cmd)
3779 spin_lock_irq(cmd->device->host->host_lock);
3780 rc = __ipr_eh_host_reset(cmd);
3781 spin_unlock_irq(cmd->device->host->host_lock);
3787 * ipr_device_reset - Reset the device
3788 * @ioa_cfg: ioa config struct
3789 * @res: resource entry struct
3791 * This function issues a device reset to the affected device.
3792 * If the device is a SCSI device, a LUN reset will be sent
3793 * to the device first. If that does not work, a target reset
3794 * will be sent. If the device is a SATA device, a PHY reset will
3798 * 0 on success / non-zero on failure
3800 static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
3801 struct ipr_resource_entry *res)
3803 struct ipr_cmnd *ipr_cmd;
3804 struct ipr_ioarcb *ioarcb;
3805 struct ipr_cmd_pkt *cmd_pkt;
3806 struct ipr_ioarcb_ata_regs *regs;
3810 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
3811 ioarcb = &ipr_cmd->ioarcb;
3812 cmd_pkt = &ioarcb->cmd_pkt;
3813 regs = &ioarcb->add_data.u.regs;
3815 ioarcb->res_handle = res->cfgte.res_handle;
3816 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
3817 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
3818 if (ipr_is_gata(res)) {
3819 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
3820 ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(regs->flags));
3821 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
3824 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
3825 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
3826 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
3827 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET)
3828 memcpy(&res->sata_port->ioasa, &ipr_cmd->ioasa.u.gata,
3829 sizeof(struct ipr_ioasa_gata));
3832 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0);
3836 * ipr_sata_reset - Reset the SATA port
3837 * @link: SATA link to reset
3838 * @classes: class of the attached device
3840 * This function issues a SATA phy reset to the affected ATA link.
3843 * 0 on success / non-zero on failure
3845 static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
3846 unsigned long deadline)
3848 struct ipr_sata_port *sata_port = link->ap->private_data;
3849 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
3850 struct ipr_resource_entry *res;
3851 unsigned long lock_flags = 0;
3855 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3856 while(ioa_cfg->in_reset_reload) {
3857 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3858 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3859 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3862 res = sata_port->res;
3864 rc = ipr_device_reset(ioa_cfg, res);
3865 switch(res->cfgte.proto) {
3866 case IPR_PROTO_SATA:
3867 case IPR_PROTO_SAS_STP:
3868 *classes = ATA_DEV_ATA;
3870 case IPR_PROTO_SATA_ATAPI:
3871 case IPR_PROTO_SAS_STP_ATAPI:
3872 *classes = ATA_DEV_ATAPI;
3875 *classes = ATA_DEV_UNKNOWN;
3880 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3886 * ipr_eh_dev_reset - Reset the device
3887 * @scsi_cmd: scsi command struct
3889 * This function issues a device reset to the affected device.
3890 * A LUN reset will be sent to the device first. If that does
3891 * not work, a target reset will be sent.
3896 static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
3898 struct ipr_cmnd *ipr_cmd;
3899 struct ipr_ioa_cfg *ioa_cfg;
3900 struct ipr_resource_entry *res;
3901 struct ata_port *ap;
3905 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
3906 res = scsi_cmd->device->hostdata;
3912 * If we are currently going through reset/reload, return failed. This will force the
3913 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
3916 if (ioa_cfg->in_reset_reload)
3918 if (ioa_cfg->ioa_is_dead)
3921 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
3922 if (ipr_cmd->ioarcb.res_handle == res->cfgte.res_handle) {
3923 if (ipr_cmd->scsi_cmd)
3924 ipr_cmd->done = ipr_scsi_eh_done;
3926 ipr_cmd->done = ipr_sata_eh_done;
3927 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
3928 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
3929 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
3934 res->resetting_device = 1;
3935 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
3937 if (ipr_is_gata(res) && res->sata_port) {
3938 ap = res->sata_port->ap;
3939 spin_unlock_irq(scsi_cmd->device->host->host_lock);
3940 ata_std_error_handler(ap);
3941 spin_lock_irq(scsi_cmd->device->host->host_lock);
3943 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
3944 if (ipr_cmd->ioarcb.res_handle == res->cfgte.res_handle) {
3950 rc = ipr_device_reset(ioa_cfg, res);
3951 res->resetting_device = 0;
3954 return (rc ? FAILED : SUCCESS);
3957 static int ipr_eh_dev_reset(struct scsi_cmnd * cmd)
3961 spin_lock_irq(cmd->device->host->host_lock);
3962 rc = __ipr_eh_dev_reset(cmd);
3963 spin_unlock_irq(cmd->device->host->host_lock);
3969 * ipr_bus_reset_done - Op done function for bus reset.
3970 * @ipr_cmd: ipr command struct
3972 * This function is the op done function for a bus reset
3977 static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
3979 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
3980 struct ipr_resource_entry *res;
3983 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3984 if (!memcmp(&res->cfgte.res_handle, &ipr_cmd->ioarcb.res_handle,
3985 sizeof(res->cfgte.res_handle))) {
3986 scsi_report_bus_reset(ioa_cfg->host, res->cfgte.res_addr.bus);
3992 * If abort has not completed, indicate the reset has, else call the
3993 * abort's done function to wake the sleeping eh thread
3995 if (ipr_cmd->sibling->sibling)
3996 ipr_cmd->sibling->sibling = NULL;
3998 ipr_cmd->sibling->done(ipr_cmd->sibling);
4000 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4005 * ipr_abort_timeout - An abort task has timed out
4006 * @ipr_cmd: ipr command struct
4008 * This function handles when an abort task times out. If this
4009 * happens we issue a bus reset since we have resources tied
4010 * up that must be freed before returning to the midlayer.
4015 static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
4017 struct ipr_cmnd *reset_cmd;
4018 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4019 struct ipr_cmd_pkt *cmd_pkt;
4020 unsigned long lock_flags = 0;
4023 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4024 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
4025 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4029 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
4030 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4031 ipr_cmd->sibling = reset_cmd;
4032 reset_cmd->sibling = ipr_cmd;
4033 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
4034 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
4035 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4036 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
4037 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
4039 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
4040 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4045 * ipr_cancel_op - Cancel specified op
4046 * @scsi_cmd: scsi command struct
4048 * This function cancels specified op.
4053 static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
4055 struct ipr_cmnd *ipr_cmd;
4056 struct ipr_ioa_cfg *ioa_cfg;
4057 struct ipr_resource_entry *res;
4058 struct ipr_cmd_pkt *cmd_pkt;
4063 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
4064 res = scsi_cmd->device->hostdata;
4066 /* If we are currently going through reset/reload, return failed.
4067 * This will force the mid-layer to call ipr_eh_host_reset,
4068 * which will then go to sleep and wait for the reset to complete
4070 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead)
4072 if (!res || !ipr_is_gscsi(res))
4075 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4076 if (ipr_cmd->scsi_cmd == scsi_cmd) {
4077 ipr_cmd->done = ipr_scsi_eh_done;
4086 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4087 ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle;
4088 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4089 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4090 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4091 ipr_cmd->u.sdev = scsi_cmd->device;
4093 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
4095 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
4096 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4099 * If the abort task timed out and we sent a bus reset, we will get
4100 * one the following responses to the abort
4102 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
4107 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4108 if (!ipr_is_naca_model(res))
4109 res->needs_sync_complete = 1;
4112 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS);
4116 * ipr_eh_abort - Abort a single op
4117 * @scsi_cmd: scsi command struct
4122 static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd)
4124 unsigned long flags;
4129 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
4130 rc = ipr_cancel_op(scsi_cmd);
4131 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
4138 * ipr_handle_other_interrupt - Handle "other" interrupts
4139 * @ioa_cfg: ioa config struct
4140 * @int_reg: interrupt register
4143 * IRQ_NONE / IRQ_HANDLED
4145 static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
4146 volatile u32 int_reg)
4148 irqreturn_t rc = IRQ_HANDLED;
4150 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
4151 /* Mask the interrupt */
4152 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
4154 /* Clear the interrupt */
4155 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg);
4156 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
4158 list_del(&ioa_cfg->reset_cmd->queue);
4159 del_timer(&ioa_cfg->reset_cmd->timer);
4160 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
4162 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
4163 ioa_cfg->ioa_unit_checked = 1;
4165 dev_err(&ioa_cfg->pdev->dev,
4166 "Permanent IOA failure. 0x%08X\n", int_reg);
4168 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4169 ioa_cfg->sdt_state = GET_DUMP;
4171 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
4172 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
4179 * ipr_isr - Interrupt service routine
4181 * @devp: pointer to ioa config struct
4184 * IRQ_NONE / IRQ_HANDLED
4186 static irqreturn_t ipr_isr(int irq, void *devp)
4188 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
4189 unsigned long lock_flags = 0;
4190 volatile u32 int_reg, int_mask_reg;
4193 struct ipr_cmnd *ipr_cmd;
4194 irqreturn_t rc = IRQ_NONE;
4196 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4198 /* If interrupts are disabled, ignore the interrupt */
4199 if (!ioa_cfg->allow_interrupts) {
4200 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4204 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
4205 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
4207 /* If an interrupt on the adapter did not occur, ignore it */
4208 if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) {
4209 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4216 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
4217 ioa_cfg->toggle_bit) {
4219 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) &
4220 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
4222 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) {
4223 ioa_cfg->errors_logged++;
4224 dev_err(&ioa_cfg->pdev->dev, "Invalid response handle from IOA\n");
4226 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4227 ioa_cfg->sdt_state = GET_DUMP;
4229 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
4230 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4234 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
4236 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4238 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
4240 list_del(&ipr_cmd->queue);
4241 del_timer(&ipr_cmd->timer);
4242 ipr_cmd->done(ipr_cmd);
4246 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) {
4247 ioa_cfg->hrrq_curr++;
4249 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
4250 ioa_cfg->toggle_bit ^= 1u;
4254 if (ipr_cmd != NULL) {
4255 /* Clear the PCI interrupt */
4256 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg);
4257 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
4262 if (unlikely(rc == IRQ_NONE))
4263 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
4265 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4270 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
4271 * @ioa_cfg: ioa config struct
4272 * @ipr_cmd: ipr command struct
4275 * 0 on success / -1 on failure
4277 static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
4278 struct ipr_cmnd *ipr_cmd)
4281 struct scatterlist *sg;
4283 u32 ioadl_flags = 0;
4284 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4285 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
4286 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
4288 length = scsi_bufflen(scsi_cmd);
4292 nseg = scsi_dma_map(scsi_cmd);
4294 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
4298 ipr_cmd->dma_use_sg = nseg;
4300 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
4301 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
4302 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
4303 ioarcb->write_data_transfer_length = cpu_to_be32(length);
4304 ioarcb->write_ioadl_len =
4305 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
4306 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
4307 ioadl_flags = IPR_IOADL_FLAGS_READ;
4308 ioarcb->read_data_transfer_length = cpu_to_be32(length);
4309 ioarcb->read_ioadl_len =
4310 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
4313 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->add_data.u.ioadl)) {
4314 ioadl = ioarcb->add_data.u.ioadl;
4315 ioarcb->write_ioadl_addr =
4316 cpu_to_be32(be32_to_cpu(ioarcb->ioarcb_host_pci_addr) +
4317 offsetof(struct ipr_ioarcb, add_data));
4318 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
4321 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
4322 ioadl[i].flags_and_data_len =
4323 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
4324 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
4327 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
4332 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes
4333 * @scsi_cmd: scsi command struct
4338 static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd)
4341 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK;
4343 if (scsi_populate_tag_msg(scsi_cmd, tag)) {
4345 case MSG_SIMPLE_TAG:
4346 rc = IPR_FLAGS_LO_SIMPLE_TASK;
4349 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK;
4351 case MSG_ORDERED_TAG:
4352 rc = IPR_FLAGS_LO_ORDERED_TASK;
4361 * ipr_erp_done - Process completion of ERP for a device
4362 * @ipr_cmd: ipr command struct
4364 * This function copies the sense buffer into the scsi_cmd
4365 * struct and pushes the scsi_done function.
4370 static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
4372 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4373 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
4374 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4375 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4377 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
4378 scsi_cmd->result |= (DID_ERROR << 16);
4379 scmd_printk(KERN_ERR, scsi_cmd,
4380 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
4382 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
4383 SCSI_SENSE_BUFFERSIZE);
4387 if (!ipr_is_naca_model(res))
4388 res->needs_sync_complete = 1;
4391 scsi_dma_unmap(ipr_cmd->scsi_cmd);
4392 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4393 scsi_cmd->scsi_done(scsi_cmd);
4397 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
4398 * @ipr_cmd: ipr command struct
4403 static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
4405 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
4406 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4407 dma_addr_t dma_addr = be32_to_cpu(ioarcb->ioarcb_host_pci_addr);
4409 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
4410 ioarcb->write_data_transfer_length = 0;
4411 ioarcb->read_data_transfer_length = 0;
4412 ioarcb->write_ioadl_len = 0;
4413 ioarcb->read_ioadl_len = 0;
4415 ioasa->residual_data_len = 0;
4416 ioarcb->write_ioadl_addr =
4417 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl));
4418 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
4422 * ipr_erp_request_sense - Send request sense to a device
4423 * @ipr_cmd: ipr command struct
4425 * This function sends a request sense to a device as a result
4426 * of a check condition.
4431 static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
4433 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4434 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4436 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
4437 ipr_erp_done(ipr_cmd);
4441 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
4443 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
4444 cmd_pkt->cdb[0] = REQUEST_SENSE;
4445 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
4446 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
4447 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
4448 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
4450 ipr_cmd->ioadl[0].flags_and_data_len =
4451 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | SCSI_SENSE_BUFFERSIZE);
4452 ipr_cmd->ioadl[0].address =
4453 cpu_to_be32(ipr_cmd->sense_buffer_dma);
4455 ipr_cmd->ioarcb.read_ioadl_len =
4456 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
4457 ipr_cmd->ioarcb.read_data_transfer_length =
4458 cpu_to_be32(SCSI_SENSE_BUFFERSIZE);
4460 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
4461 IPR_REQUEST_SENSE_TIMEOUT * 2);
4465 * ipr_erp_cancel_all - Send cancel all to a device
4466 * @ipr_cmd: ipr command struct
4468 * This function sends a cancel all to a device to clear the
4469 * queue. If we are running TCQ on the device, QERR is set to 1,
4470 * which means all outstanding ops have been dropped on the floor.
4471 * Cancel all will return them to us.
4476 static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
4478 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4479 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
4480 struct ipr_cmd_pkt *cmd_pkt;
4484 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
4486 if (!scsi_get_tag_type(scsi_cmd->device)) {
4487 ipr_erp_request_sense(ipr_cmd);
4491 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4492 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4493 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4495 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
4496 IPR_CANCEL_ALL_TIMEOUT);
4500 * ipr_dump_ioasa - Dump contents of IOASA
4501 * @ioa_cfg: ioa config struct
4502 * @ipr_cmd: ipr command struct
4503 * @res: resource entry struct
4505 * This function is invoked by the interrupt handler when ops
4506 * fail. It will log the IOASA if appropriate. Only called
4512 static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
4513 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
4517 u32 ioasc, fd_ioasc;
4518 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4519 __be32 *ioasa_data = (__be32 *)ioasa;
4522 ioasc = be32_to_cpu(ioasa->ioasc) & IPR_IOASC_IOASC_MASK;
4523 fd_ioasc = be32_to_cpu(ioasa->fd_ioasc) & IPR_IOASC_IOASC_MASK;
4528 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
4531 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
4532 error_index = ipr_get_error(fd_ioasc);
4534 error_index = ipr_get_error(ioasc);
4536 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
4537 /* Don't log an error if the IOA already logged one */
4538 if (ioasa->ilid != 0)
4541 if (!ipr_is_gscsi(res))
4544 if (ipr_error_table[error_index].log_ioasa == 0)
4548 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
4550 if (sizeof(struct ipr_ioasa) < be16_to_cpu(ioasa->ret_stat_len))
4551 data_len = sizeof(struct ipr_ioasa);
4553 data_len = be16_to_cpu(ioasa->ret_stat_len);
4555 ipr_err("IOASA Dump:\n");
4557 for (i = 0; i < data_len / 4; i += 4) {
4558 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
4559 be32_to_cpu(ioasa_data[i]),
4560 be32_to_cpu(ioasa_data[i+1]),
4561 be32_to_cpu(ioasa_data[i+2]),
4562 be32_to_cpu(ioasa_data[i+3]));
4567 * ipr_gen_sense - Generate SCSI sense data from an IOASA
4569 * @sense_buf: sense data buffer
4574 static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
4577 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
4578 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
4579 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4580 u32 ioasc = be32_to_cpu(ioasa->ioasc);
4582 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
4584 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
4587 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
4589 if (ipr_is_vset_device(res) &&
4590 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
4591 ioasa->u.vset.failing_lba_hi != 0) {
4592 sense_buf[0] = 0x72;
4593 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
4594 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
4595 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
4599 sense_buf[9] = 0x0A;
4600 sense_buf[10] = 0x80;
4602 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
4604 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
4605 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
4606 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
4607 sense_buf[15] = failing_lba & 0x000000ff;
4609 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
4611 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
4612 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
4613 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
4614 sense_buf[19] = failing_lba & 0x000000ff;
4616 sense_buf[0] = 0x70;
4617 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
4618 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
4619 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
4621 /* Illegal request */
4622 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
4623 (be32_to_cpu(ioasa->ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
4624 sense_buf[7] = 10; /* additional length */
4626 /* IOARCB was in error */
4627 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
4628 sense_buf[15] = 0xC0;
4629 else /* Parameter data was invalid */
4630 sense_buf[15] = 0x80;
4633 ((IPR_FIELD_POINTER_MASK &
4634 be32_to_cpu(ioasa->ioasc_specific)) >> 8) & 0xff;
4636 (IPR_FIELD_POINTER_MASK &
4637 be32_to_cpu(ioasa->ioasc_specific)) & 0xff;
4639 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
4640 if (ipr_is_vset_device(res))
4641 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
4643 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
4645 sense_buf[0] |= 0x80; /* Or in the Valid bit */
4646 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
4647 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
4648 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
4649 sense_buf[6] = failing_lba & 0x000000ff;
4652 sense_buf[7] = 6; /* additional length */
4658 * ipr_get_autosense - Copy autosense data to sense buffer
4659 * @ipr_cmd: ipr command struct
4661 * This function copies the autosense buffer to the buffer
4662 * in the scsi_cmd, if there is autosense available.
4665 * 1 if autosense was available / 0 if not
4667 static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
4669 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4671 if ((be32_to_cpu(ioasa->ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
4674 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
4675 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
4676 SCSI_SENSE_BUFFERSIZE));
4681 * ipr_erp_start - Process an error response for a SCSI op
4682 * @ioa_cfg: ioa config struct
4683 * @ipr_cmd: ipr command struct
4685 * This function determines whether or not to initiate ERP
4686 * on the affected device.
4691 static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
4692 struct ipr_cmnd *ipr_cmd)
4694 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4695 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
4696 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4697 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
4700 ipr_scsi_eh_done(ipr_cmd);
4704 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
4705 ipr_gen_sense(ipr_cmd);
4707 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
4709 switch (masked_ioasc) {
4710 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
4711 if (ipr_is_naca_model(res))
4712 scsi_cmd->result |= (DID_ABORT << 16);
4714 scsi_cmd->result |= (DID_IMM_RETRY << 16);
4716 case IPR_IOASC_IR_RESOURCE_HANDLE:
4717 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
4718 scsi_cmd->result |= (DID_NO_CONNECT << 16);
4720 case IPR_IOASC_HW_SEL_TIMEOUT:
4721 scsi_cmd->result |= (DID_NO_CONNECT << 16);
4722 if (!ipr_is_naca_model(res))
4723 res->needs_sync_complete = 1;
4725 case IPR_IOASC_SYNC_REQUIRED:
4727 res->needs_sync_complete = 1;
4728 scsi_cmd->result |= (DID_IMM_RETRY << 16);
4730 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
4731 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
4732 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
4734 case IPR_IOASC_BUS_WAS_RESET:
4735 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
4737 * Report the bus reset and ask for a retry. The device
4738 * will give CC/UA the next command.
4740 if (!res->resetting_device)
4741 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
4742 scsi_cmd->result |= (DID_ERROR << 16);
4743 if (!ipr_is_naca_model(res))
4744 res->needs_sync_complete = 1;
4746 case IPR_IOASC_HW_DEV_BUS_STATUS:
4747 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
4748 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
4749 if (!ipr_get_autosense(ipr_cmd)) {
4750 if (!ipr_is_naca_model(res)) {
4751 ipr_erp_cancel_all(ipr_cmd);
4756 if (!ipr_is_naca_model(res))
4757 res->needs_sync_complete = 1;
4759 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
4762 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
4763 scsi_cmd->result |= (DID_ERROR << 16);
4764 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
4765 res->needs_sync_complete = 1;
4769 scsi_dma_unmap(ipr_cmd->scsi_cmd);
4770 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4771 scsi_cmd->scsi_done(scsi_cmd);
4775 * ipr_scsi_done - mid-layer done function
4776 * @ipr_cmd: ipr command struct
4778 * This function is invoked by the interrupt handler for
4779 * ops generated by the SCSI mid-layer
4784 static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
4786 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4787 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4788 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4790 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->ioasa.residual_data_len));
4792 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
4793 scsi_dma_unmap(ipr_cmd->scsi_cmd);
4794 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4795 scsi_cmd->scsi_done(scsi_cmd);
4797 ipr_erp_start(ioa_cfg, ipr_cmd);
4801 * ipr_queuecommand - Queue a mid-layer request
4802 * @scsi_cmd: scsi command struct
4803 * @done: done function
4805 * This function queues a request generated by the mid-layer.
4809 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
4810 * SCSI_MLQUEUE_HOST_BUSY if host is busy
4812 static int ipr_queuecommand(struct scsi_cmnd *scsi_cmd,
4813 void (*done) (struct scsi_cmnd *))
4815 struct ipr_ioa_cfg *ioa_cfg;
4816 struct ipr_resource_entry *res;
4817 struct ipr_ioarcb *ioarcb;
4818 struct ipr_cmnd *ipr_cmd;
4821 scsi_cmd->scsi_done = done;
4822 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
4823 res = scsi_cmd->device->hostdata;
4824 scsi_cmd->result = (DID_OK << 16);
4827 * We are currently blocking all devices due to a host reset
4828 * We have told the host to stop giving us new requests, but
4829 * ERP ops don't count. FIXME
4831 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead))
4832 return SCSI_MLQUEUE_HOST_BUSY;
4835 * FIXME - Create scsi_set_host_offline interface
4836 * and the ioa_is_dead check can be removed
4838 if (unlikely(ioa_cfg->ioa_is_dead || !res)) {
4839 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
4840 scsi_cmd->result = (DID_NO_CONNECT << 16);
4841 scsi_cmd->scsi_done(scsi_cmd);
4845 if (ipr_is_gata(res) && res->sata_port)
4846 return ata_sas_queuecmd(scsi_cmd, done, res->sata_port->ap);
4848 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4849 ioarcb = &ipr_cmd->ioarcb;
4850 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
4852 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
4853 ipr_cmd->scsi_cmd = scsi_cmd;
4854 ioarcb->res_handle = res->cfgte.res_handle;
4855 ipr_cmd->done = ipr_scsi_done;
4856 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr));
4858 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
4859 if (scsi_cmd->underflow == 0)
4860 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
4862 if (res->needs_sync_complete) {
4863 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
4864 res->needs_sync_complete = 0;
4867 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
4868 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
4869 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
4870 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd);
4873 if (scsi_cmd->cmnd[0] >= 0xC0 &&
4874 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE))
4875 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
4877 if (likely(rc == 0))
4878 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
4880 if (likely(rc == 0)) {
4882 writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr),
4883 ioa_cfg->regs.ioarrin_reg);
4885 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4886 return SCSI_MLQUEUE_HOST_BUSY;
4893 * ipr_ioctl - IOCTL handler
4894 * @sdev: scsi device struct
4899 * 0 on success / other on failure
4901 static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
4903 struct ipr_resource_entry *res;
4905 res = (struct ipr_resource_entry *)sdev->hostdata;
4906 if (res && ipr_is_gata(res))
4907 return ata_scsi_ioctl(sdev, cmd, arg);
4913 * ipr_info - Get information about the card/driver
4914 * @scsi_host: scsi host struct
4917 * pointer to buffer with description string
4919 static const char * ipr_ioa_info(struct Scsi_Host *host)
4921 static char buffer[512];
4922 struct ipr_ioa_cfg *ioa_cfg;
4923 unsigned long lock_flags = 0;
4925 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
4927 spin_lock_irqsave(host->host_lock, lock_flags);
4928 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
4929 spin_unlock_irqrestore(host->host_lock, lock_flags);
4934 static struct scsi_host_template driver_template = {
4935 .module = THIS_MODULE,
4937 .info = ipr_ioa_info,
4939 .queuecommand = ipr_queuecommand,
4940 .eh_abort_handler = ipr_eh_abort,
4941 .eh_device_reset_handler = ipr_eh_dev_reset,
4942 .eh_host_reset_handler = ipr_eh_host_reset,
4943 .slave_alloc = ipr_slave_alloc,
4944 .slave_configure = ipr_slave_configure,
4945 .slave_destroy = ipr_slave_destroy,
4946 .target_alloc = ipr_target_alloc,
4947 .target_destroy = ipr_target_destroy,
4948 .change_queue_depth = ipr_change_queue_depth,
4949 .change_queue_type = ipr_change_queue_type,
4950 .bios_param = ipr_biosparam,
4951 .can_queue = IPR_MAX_COMMANDS,
4953 .sg_tablesize = IPR_MAX_SGLIST,
4954 .max_sectors = IPR_IOA_MAX_SECTORS,
4955 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
4956 .use_clustering = ENABLE_CLUSTERING,
4957 .shost_attrs = ipr_ioa_attrs,
4958 .sdev_attrs = ipr_dev_attrs,
4959 .proc_name = IPR_NAME
4963 * ipr_ata_phy_reset - libata phy_reset handler
4964 * @ap: ata port to reset
4967 static void ipr_ata_phy_reset(struct ata_port *ap)
4969 unsigned long flags;
4970 struct ipr_sata_port *sata_port = ap->private_data;
4971 struct ipr_resource_entry *res = sata_port->res;
4972 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
4976 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
4977 while(ioa_cfg->in_reset_reload) {
4978 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
4979 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4980 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
4983 if (!ioa_cfg->allow_cmds)
4986 rc = ipr_device_reset(ioa_cfg, res);
4989 ata_port_disable(ap);
4993 switch(res->cfgte.proto) {
4994 case IPR_PROTO_SATA:
4995 case IPR_PROTO_SAS_STP:
4996 ap->link.device[0].class = ATA_DEV_ATA;
4998 case IPR_PROTO_SATA_ATAPI:
4999 case IPR_PROTO_SAS_STP_ATAPI:
5000 ap->link.device[0].class = ATA_DEV_ATAPI;
5003 ap->link.device[0].class = ATA_DEV_UNKNOWN;
5004 ata_port_disable(ap);
5009 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5014 * ipr_ata_post_internal - Cleanup after an internal command
5015 * @qc: ATA queued command
5020 static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
5022 struct ipr_sata_port *sata_port = qc->ap->private_data;
5023 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5024 struct ipr_cmnd *ipr_cmd;
5025 unsigned long flags;
5027 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5028 while(ioa_cfg->in_reset_reload) {
5029 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5030 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5031 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5034 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
5035 if (ipr_cmd->qc == qc) {
5036 ipr_device_reset(ioa_cfg, sata_port->res);
5040 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5044 * ipr_tf_read - Read the current ATA taskfile for the ATA port
5046 * @tf: destination ATA taskfile
5051 static void ipr_tf_read(struct ata_port *ap, struct ata_taskfile *tf)
5053 struct ipr_sata_port *sata_port = ap->private_data;
5054 struct ipr_ioasa_gata *g = &sata_port->ioasa;
5056 tf->feature = g->error;
5057 tf->nsect = g->nsect;
5061 tf->device = g->device;
5062 tf->command = g->status;
5063 tf->hob_nsect = g->hob_nsect;
5064 tf->hob_lbal = g->hob_lbal;
5065 tf->hob_lbam = g->hob_lbam;
5066 tf->hob_lbah = g->hob_lbah;
5067 tf->ctl = g->alt_status;
5071 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
5072 * @regs: destination
5073 * @tf: source ATA taskfile
5078 static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
5079 struct ata_taskfile *tf)
5081 regs->feature = tf->feature;
5082 regs->nsect = tf->nsect;
5083 regs->lbal = tf->lbal;
5084 regs->lbam = tf->lbam;
5085 regs->lbah = tf->lbah;
5086 regs->device = tf->device;
5087 regs->command = tf->command;
5088 regs->hob_feature = tf->hob_feature;
5089 regs->hob_nsect = tf->hob_nsect;
5090 regs->hob_lbal = tf->hob_lbal;
5091 regs->hob_lbam = tf->hob_lbam;
5092 regs->hob_lbah = tf->hob_lbah;
5093 regs->ctl = tf->ctl;
5097 * ipr_sata_done - done function for SATA commands
5098 * @ipr_cmd: ipr command struct
5100 * This function is invoked by the interrupt handler for
5101 * ops generated by the SCSI mid-layer to SATA devices
5106 static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
5108 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5109 struct ata_queued_cmd *qc = ipr_cmd->qc;
5110 struct ipr_sata_port *sata_port = qc->ap->private_data;
5111 struct ipr_resource_entry *res = sata_port->res;
5112 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5114 memcpy(&sata_port->ioasa, &ipr_cmd->ioasa.u.gata,
5115 sizeof(struct ipr_ioasa_gata));
5116 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
5118 if (be32_to_cpu(ipr_cmd->ioasa.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
5119 scsi_report_device_reset(ioa_cfg->host, res->cfgte.res_addr.bus,
5120 res->cfgte.res_addr.target);
5122 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
5123 qc->err_mask |= __ac_err_mask(ipr_cmd->ioasa.u.gata.status);
5125 qc->err_mask |= ac_err_mask(ipr_cmd->ioasa.u.gata.status);
5126 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5127 ata_qc_complete(qc);
5131 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
5132 * @ipr_cmd: ipr command struct
5133 * @qc: ATA queued command
5136 static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
5137 struct ata_queued_cmd *qc)
5139 u32 ioadl_flags = 0;
5140 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5141 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5142 struct ipr_ioadl_desc *last_ioadl = NULL;
5143 int len = qc->nbytes;
5144 struct scatterlist *sg;
5150 if (qc->dma_dir == DMA_TO_DEVICE) {
5151 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5152 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5153 ioarcb->write_data_transfer_length = cpu_to_be32(len);
5154 ioarcb->write_ioadl_len =
5155 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5156 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
5157 ioadl_flags = IPR_IOADL_FLAGS_READ;
5158 ioarcb->read_data_transfer_length = cpu_to_be32(len);
5159 ioarcb->read_ioadl_len =
5160 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5163 for_each_sg(qc->sg, sg, qc->n_elem, si) {
5164 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5165 ioadl->address = cpu_to_be32(sg_dma_address(sg));
5171 if (likely(last_ioadl))
5172 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5176 * ipr_qc_issue - Issue a SATA qc to a device
5177 * @qc: queued command
5182 static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
5184 struct ata_port *ap = qc->ap;
5185 struct ipr_sata_port *sata_port = ap->private_data;
5186 struct ipr_resource_entry *res = sata_port->res;
5187 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5188 struct ipr_cmnd *ipr_cmd;
5189 struct ipr_ioarcb *ioarcb;
5190 struct ipr_ioarcb_ata_regs *regs;
5192 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead))
5193 return AC_ERR_SYSTEM;
5195 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5196 ioarcb = &ipr_cmd->ioarcb;
5197 regs = &ioarcb->add_data.u.regs;
5199 memset(&ioarcb->add_data, 0, sizeof(ioarcb->add_data));
5200 ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(ioarcb->add_data.u.regs));
5202 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
5204 ipr_cmd->done = ipr_sata_done;
5205 ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle;
5206 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
5207 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
5208 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5209 ipr_cmd->dma_use_sg = qc->n_elem;
5211 ipr_build_ata_ioadl(ipr_cmd, qc);
5212 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
5213 ipr_copy_sata_tf(regs, &qc->tf);
5214 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
5215 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr));
5217 switch (qc->tf.protocol) {
5218 case ATA_PROT_NODATA:
5223 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
5226 case ATAPI_PROT_PIO:
5227 case ATAPI_PROT_NODATA:
5228 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
5231 case ATAPI_PROT_DMA:
5232 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
5233 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
5238 return AC_ERR_INVALID;
5242 writel(be32_to_cpu(ioarcb->ioarcb_host_pci_addr),
5243 ioa_cfg->regs.ioarrin_reg);
5248 * ipr_ata_check_status - Return last ATA status
5254 static u8 ipr_ata_check_status(struct ata_port *ap)
5256 struct ipr_sata_port *sata_port = ap->private_data;
5257 return sata_port->ioasa.status;
5261 * ipr_ata_check_altstatus - Return last ATA altstatus
5267 static u8 ipr_ata_check_altstatus(struct ata_port *ap)
5269 struct ipr_sata_port *sata_port = ap->private_data;
5270 return sata_port->ioasa.alt_status;
5273 static struct ata_port_operations ipr_sata_ops = {
5274 .sff_check_status = ipr_ata_check_status,
5275 .sff_check_altstatus = ipr_ata_check_altstatus,
5276 .sff_dev_select = ata_noop_dev_select,
5277 .phy_reset = ipr_ata_phy_reset,
5278 .hardreset = ipr_sata_reset,
5279 .post_internal_cmd = ipr_ata_post_internal,
5280 .sff_tf_read = ipr_tf_read,
5281 .qc_prep = ata_noop_qc_prep,
5282 .qc_issue = ipr_qc_issue,
5283 .qc_fill_rtf = ata_sff_qc_fill_rtf,
5284 .port_start = ata_sas_port_start,
5285 .port_stop = ata_sas_port_stop
5288 static struct ata_port_info sata_port_info = {
5289 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_SATA_RESET |
5290 ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA,
5291 .pio_mask = 0x10, /* pio4 */
5293 .udma_mask = 0x7f, /* udma0-6 */
5294 .port_ops = &ipr_sata_ops
5297 #ifdef CONFIG_PPC_PSERIES
5298 static const u16 ipr_blocked_processors[] = {
5310 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
5311 * @ioa_cfg: ioa cfg struct
5313 * Adapters that use Gemstone revision < 3.1 do not work reliably on
5314 * certain pSeries hardware. This function determines if the given
5315 * adapter is in one of these confgurations or not.
5318 * 1 if adapter is not supported / 0 if adapter is supported
5320 static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
5324 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
5325 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){
5326 if (__is_processor(ipr_blocked_processors[i]))
5333 #define ipr_invalid_adapter(ioa_cfg) 0
5337 * ipr_ioa_bringdown_done - IOA bring down completion.
5338 * @ipr_cmd: ipr command struct
5340 * This function processes the completion of an adapter bring down.
5341 * It wakes any reset sleepers.
5346 static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
5348 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5351 ioa_cfg->in_reset_reload = 0;
5352 ioa_cfg->reset_retries = 0;
5353 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5354 wake_up_all(&ioa_cfg->reset_wait_q);
5356 spin_unlock_irq(ioa_cfg->host->host_lock);
5357 scsi_unblock_requests(ioa_cfg->host);
5358 spin_lock_irq(ioa_cfg->host->host_lock);
5361 return IPR_RC_JOB_RETURN;
5365 * ipr_ioa_reset_done - IOA reset completion.
5366 * @ipr_cmd: ipr command struct
5368 * This function processes the completion of an adapter reset.
5369 * It schedules any necessary mid-layer add/removes and
5370 * wakes any reset sleepers.
5375 static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
5377 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5378 struct ipr_resource_entry *res;
5379 struct ipr_hostrcb *hostrcb, *temp;
5383 ioa_cfg->in_reset_reload = 0;
5384 ioa_cfg->allow_cmds = 1;
5385 ioa_cfg->reset_cmd = NULL;
5386 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
5388 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
5389 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) {
5394 schedule_work(&ioa_cfg->work_q);
5396 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
5397 list_del(&hostrcb->queue);
5398 if (i++ < IPR_NUM_LOG_HCAMS)
5399 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
5401 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
5404 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
5405 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
5407 ioa_cfg->reset_retries = 0;
5408 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5409 wake_up_all(&ioa_cfg->reset_wait_q);
5411 spin_unlock_irq(ioa_cfg->host->host_lock);
5412 scsi_unblock_requests(ioa_cfg->host);
5413 spin_lock_irq(ioa_cfg->host->host_lock);
5415 if (!ioa_cfg->allow_cmds)
5416 scsi_block_requests(ioa_cfg->host);
5419 return IPR_RC_JOB_RETURN;
5423 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
5424 * @supported_dev: supported device struct
5425 * @vpids: vendor product id struct
5430 static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
5431 struct ipr_std_inq_vpids *vpids)
5433 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
5434 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
5435 supported_dev->num_records = 1;
5436 supported_dev->data_length =
5437 cpu_to_be16(sizeof(struct ipr_supported_device));
5438 supported_dev->reserved = 0;
5442 * ipr_set_supported_devs - Send Set Supported Devices for a device
5443 * @ipr_cmd: ipr command struct
5445 * This function send a Set Supported Devices to the adapter
5448 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5450 static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
5452 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5453 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
5454 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5455 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5456 struct ipr_resource_entry *res = ipr_cmd->u.res;
5458 ipr_cmd->job_step = ipr_ioa_reset_done;
5460 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
5461 if (!ipr_is_scsi_disk(res))
5464 ipr_cmd->u.res = res;
5465 ipr_set_sup_dev_dflt(supp_dev, &res->cfgte.std_inq_data.vpids);
5467 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
5468 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5469 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5471 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
5472 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
5473 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
5475 ioadl->flags_and_data_len = cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST |
5476 sizeof(struct ipr_supported_device));
5477 ioadl->address = cpu_to_be32(ioa_cfg->vpd_cbs_dma +
5478 offsetof(struct ipr_misc_cbs, supp_dev));
5479 ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
5480 ioarcb->write_data_transfer_length =
5481 cpu_to_be32(sizeof(struct ipr_supported_device));
5483 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
5484 IPR_SET_SUP_DEVICE_TIMEOUT);
5486 ipr_cmd->job_step = ipr_set_supported_devs;
5487 return IPR_RC_JOB_RETURN;
5490 return IPR_RC_JOB_CONTINUE;
5494 * ipr_setup_write_cache - Disable write cache if needed
5495 * @ipr_cmd: ipr command struct
5497 * This function sets up adapters write cache to desired setting
5500 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5502 static int ipr_setup_write_cache(struct ipr_cmnd *ipr_cmd)
5504 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5506 ipr_cmd->job_step = ipr_set_supported_devs;
5507 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
5508 struct ipr_resource_entry, queue);
5510 if (ioa_cfg->cache_state != CACHE_DISABLED)
5511 return IPR_RC_JOB_CONTINUE;
5513 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
5514 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5515 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
5516 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
5518 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5520 return IPR_RC_JOB_RETURN;
5524 * ipr_get_mode_page - Locate specified mode page
5525 * @mode_pages: mode page buffer
5526 * @page_code: page code to find
5527 * @len: minimum required length for mode page
5530 * pointer to mode page / NULL on failure
5532 static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
5533 u32 page_code, u32 len)
5535 struct ipr_mode_page_hdr *mode_hdr;
5539 if (!mode_pages || (mode_pages->hdr.length == 0))
5542 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
5543 mode_hdr = (struct ipr_mode_page_hdr *)
5544 (mode_pages->data + mode_pages->hdr.block_desc_len);
5547 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
5548 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
5552 page_length = (sizeof(struct ipr_mode_page_hdr) +
5553 mode_hdr->page_length);
5554 length -= page_length;
5555 mode_hdr = (struct ipr_mode_page_hdr *)
5556 ((unsigned long)mode_hdr + page_length);
5563 * ipr_check_term_power - Check for term power errors
5564 * @ioa_cfg: ioa config struct
5565 * @mode_pages: IOAFP mode pages buffer
5567 * Check the IOAFP's mode page 28 for term power errors
5572 static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
5573 struct ipr_mode_pages *mode_pages)
5577 struct ipr_dev_bus_entry *bus;
5578 struct ipr_mode_page28 *mode_page;
5580 mode_page = ipr_get_mode_page(mode_pages, 0x28,
5581 sizeof(struct ipr_mode_page28));
5583 entry_length = mode_page->entry_length;
5585 bus = mode_page->bus;
5587 for (i = 0; i < mode_page->num_entries; i++) {
5588 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
5589 dev_err(&ioa_cfg->pdev->dev,
5590 "Term power is absent on scsi bus %d\n",
5594 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
5599 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
5600 * @ioa_cfg: ioa config struct
5602 * Looks through the config table checking for SES devices. If
5603 * the SES device is in the SES table indicating a maximum SCSI
5604 * bus speed, the speed is limited for the bus.
5609 static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
5614 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
5615 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
5616 ioa_cfg->bus_attr[i].bus_width);
5618 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
5619 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
5624 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
5625 * @ioa_cfg: ioa config struct
5626 * @mode_pages: mode page 28 buffer
5628 * Updates mode page 28 based on driver configuration
5633 static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
5634 struct ipr_mode_pages *mode_pages)
5636 int i, entry_length;
5637 struct ipr_dev_bus_entry *bus;
5638 struct ipr_bus_attributes *bus_attr;
5639 struct ipr_mode_page28 *mode_page;
5641 mode_page = ipr_get_mode_page(mode_pages, 0x28,
5642 sizeof(struct ipr_mode_page28));
5644 entry_length = mode_page->entry_length;
5646 /* Loop for each device bus entry */
5647 for (i = 0, bus = mode_page->bus;
5648 i < mode_page->num_entries;
5649 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
5650 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
5651 dev_err(&ioa_cfg->pdev->dev,
5652 "Invalid resource address reported: 0x%08X\n",
5653 IPR_GET_PHYS_LOC(bus->res_addr));
5657 bus_attr = &ioa_cfg->bus_attr[i];
5658 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
5659 bus->bus_width = bus_attr->bus_width;
5660 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
5661 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
5662 if (bus_attr->qas_enabled)
5663 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
5665 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
5670 * ipr_build_mode_select - Build a mode select command
5671 * @ipr_cmd: ipr command struct
5672 * @res_handle: resource handle to send command to
5673 * @parm: Byte 2 of Mode Sense command
5674 * @dma_addr: DMA buffer address
5675 * @xfer_len: data transfer length
5680 static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
5681 __be32 res_handle, u8 parm, u32 dma_addr,
5684 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5685 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5687 ioarcb->res_handle = res_handle;
5688 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
5689 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5690 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
5691 ioarcb->cmd_pkt.cdb[1] = parm;
5692 ioarcb->cmd_pkt.cdb[4] = xfer_len;
5694 ioadl->flags_and_data_len =
5695 cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST | xfer_len);
5696 ioadl->address = cpu_to_be32(dma_addr);
5697 ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
5698 ioarcb->write_data_transfer_length = cpu_to_be32(xfer_len);
5702 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
5703 * @ipr_cmd: ipr command struct
5705 * This function sets up the SCSI bus attributes and sends
5706 * a Mode Select for Page 28 to activate them.
5711 static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
5713 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5714 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
5718 ipr_scsi_bus_speed_limit(ioa_cfg);
5719 ipr_check_term_power(ioa_cfg, mode_pages);
5720 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
5721 length = mode_pages->hdr.length + 1;
5722 mode_pages->hdr.length = 0;
5724 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
5725 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
5728 ipr_cmd->job_step = ipr_setup_write_cache;
5729 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5732 return IPR_RC_JOB_RETURN;
5736 * ipr_build_mode_sense - Builds a mode sense command
5737 * @ipr_cmd: ipr command struct
5738 * @res: resource entry struct
5739 * @parm: Byte 2 of mode sense command
5740 * @dma_addr: DMA address of mode sense buffer
5741 * @xfer_len: Size of DMA buffer
5746 static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
5748 u8 parm, u32 dma_addr, u8 xfer_len)
5750 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5751 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5753 ioarcb->res_handle = res_handle;
5754 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
5755 ioarcb->cmd_pkt.cdb[2] = parm;
5756 ioarcb->cmd_pkt.cdb[4] = xfer_len;
5757 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
5759 ioadl->flags_and_data_len =
5760 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len);
5761 ioadl->address = cpu_to_be32(dma_addr);
5762 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
5763 ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len);
5767 * ipr_reset_cmd_failed - Handle failure of IOA reset command
5768 * @ipr_cmd: ipr command struct
5770 * This function handles the failure of an IOA bringup command.
5775 static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
5777 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5778 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5780 dev_err(&ioa_cfg->pdev->dev,
5781 "0x%02X failed with IOASC: 0x%08X\n",
5782 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
5784 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5785 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5786 return IPR_RC_JOB_RETURN;
5790 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
5791 * @ipr_cmd: ipr command struct
5793 * This function handles the failure of a Mode Sense to the IOAFP.
5794 * Some adapters do not handle all mode pages.
5797 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5799 static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
5801 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5803 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
5804 ipr_cmd->job_step = ipr_setup_write_cache;
5805 return IPR_RC_JOB_CONTINUE;
5808 return ipr_reset_cmd_failed(ipr_cmd);
5812 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
5813 * @ipr_cmd: ipr command struct
5815 * This function send a Page 28 mode sense to the IOA to
5816 * retrieve SCSI bus attributes.
5821 static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
5823 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5826 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
5827 0x28, ioa_cfg->vpd_cbs_dma +
5828 offsetof(struct ipr_misc_cbs, mode_pages),
5829 sizeof(struct ipr_mode_pages));
5831 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
5832 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
5834 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5837 return IPR_RC_JOB_RETURN;
5841 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
5842 * @ipr_cmd: ipr command struct
5844 * This function enables dual IOA RAID support if possible.
5849 static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
5851 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5852 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
5853 struct ipr_mode_page24 *mode_page;
5857 mode_page = ipr_get_mode_page(mode_pages, 0x24,
5858 sizeof(struct ipr_mode_page24));
5861 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
5863 length = mode_pages->hdr.length + 1;
5864 mode_pages->hdr.length = 0;
5866 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
5867 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
5870 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
5871 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5874 return IPR_RC_JOB_RETURN;
5878 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
5879 * @ipr_cmd: ipr command struct
5881 * This function handles the failure of a Mode Sense to the IOAFP.
5882 * Some adapters do not handle all mode pages.
5885 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5887 static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
5889 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5891 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
5892 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
5893 return IPR_RC_JOB_CONTINUE;
5896 return ipr_reset_cmd_failed(ipr_cmd);
5900 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
5901 * @ipr_cmd: ipr command struct
5903 * This function send a mode sense to the IOA to retrieve
5904 * the IOA Advanced Function Control mode page.
5909 static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
5911 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5914 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
5915 0x24, ioa_cfg->vpd_cbs_dma +
5916 offsetof(struct ipr_misc_cbs, mode_pages),
5917 sizeof(struct ipr_mode_pages));
5919 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
5920 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
5922 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5925 return IPR_RC_JOB_RETURN;
5929 * ipr_init_res_table - Initialize the resource table
5930 * @ipr_cmd: ipr command struct
5932 * This function looks through the existing resource table, comparing
5933 * it with the config table. This function will take care of old/new
5934 * devices and schedule adding/removing them from the mid-layer
5938 * IPR_RC_JOB_CONTINUE
5940 static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
5942 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5943 struct ipr_resource_entry *res, *temp;
5944 struct ipr_config_table_entry *cfgte;
5949 if (ioa_cfg->cfg_table->hdr.flags & IPR_UCODE_DOWNLOAD_REQ)
5950 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
5952 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
5953 list_move_tail(&res->queue, &old_res);
5955 for (i = 0; i < ioa_cfg->cfg_table->hdr.num_entries; i++) {
5956 cfgte = &ioa_cfg->cfg_table->dev[i];
5959 list_for_each_entry_safe(res, temp, &old_res, queue) {
5960 if (!memcmp(&res->cfgte.res_addr,
5961 &cfgte->res_addr, sizeof(cfgte->res_addr))) {
5962 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
5969 if (list_empty(&ioa_cfg->free_res_q)) {
5970 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
5975 res = list_entry(ioa_cfg->free_res_q.next,
5976 struct ipr_resource_entry, queue);
5977 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
5978 ipr_init_res_entry(res);
5983 memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry));
5986 list_for_each_entry_safe(res, temp, &old_res, queue) {
5988 res->del_from_ml = 1;
5989 res->cfgte.res_handle = IPR_INVALID_RES_HANDLE;
5990 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
5992 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
5996 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
5997 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
5999 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6002 return IPR_RC_JOB_CONTINUE;
6006 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
6007 * @ipr_cmd: ipr command struct
6009 * This function sends a Query IOA Configuration command
6010 * to the adapter to retrieve the IOA configuration table.
6015 static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
6017 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6018 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6019 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
6020 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
6021 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
6024 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
6025 ioa_cfg->dual_raid = 1;
6026 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
6027 ucode_vpd->major_release, ucode_vpd->card_type,
6028 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
6029 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6030 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6032 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
6033 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_config_table) >> 8) & 0xff;
6034 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_config_table) & 0xff;
6036 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
6037 ioarcb->read_data_transfer_length =
6038 cpu_to_be32(sizeof(struct ipr_config_table));
6040 ioadl->address = cpu_to_be32(ioa_cfg->cfg_table_dma);
6041 ioadl->flags_and_data_len =
6042 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(struct ipr_config_table));
6044 ipr_cmd->job_step = ipr_init_res_table;
6046 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6049 return IPR_RC_JOB_RETURN;
6053 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
6054 * @ipr_cmd: ipr command struct
6056 * This utility function sends an inquiry to the adapter.
6061 static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
6062 u32 dma_addr, u8 xfer_len)
6064 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6065 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
6068 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6069 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6071 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
6072 ioarcb->cmd_pkt.cdb[1] = flags;
6073 ioarcb->cmd_pkt.cdb[2] = page;
6074 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6076 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
6077 ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len);
6079 ioadl->address = cpu_to_be32(dma_addr);
6080 ioadl->flags_and_data_len =
6081 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len);
6083 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6088 * ipr_inquiry_page_supported - Is the given inquiry page supported
6089 * @page0: inquiry page 0 buffer
6092 * This function determines if the specified inquiry page is supported.
6095 * 1 if page is supported / 0 if not
6097 static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
6101 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
6102 if (page0->page[i] == page)
6109 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
6110 * @ipr_cmd: ipr command struct
6112 * This function sends a Page 0xD0 inquiry to the adapter
6113 * to retrieve adapter capabilities.
6116 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6118 static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
6120 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6121 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
6122 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
6125 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
6126 memset(cap, 0, sizeof(*cap));
6128 if (ipr_inquiry_page_supported(page0, 0xD0)) {
6129 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
6130 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
6131 sizeof(struct ipr_inquiry_cap));
6132 return IPR_RC_JOB_RETURN;
6136 return IPR_RC_JOB_CONTINUE;
6140 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
6141 * @ipr_cmd: ipr command struct
6143 * This function sends a Page 3 inquiry to the adapter
6144 * to retrieve software VPD information.
6147 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6149 static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
6151 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6152 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
6156 if (!ipr_inquiry_page_supported(page0, 1))
6157 ioa_cfg->cache_state = CACHE_NONE;
6159 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
6161 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
6162 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
6163 sizeof(struct ipr_inquiry_page3));
6166 return IPR_RC_JOB_RETURN;
6170 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
6171 * @ipr_cmd: ipr command struct
6173 * This function sends a Page 0 inquiry to the adapter
6174 * to retrieve supported inquiry pages.
6177 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6179 static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
6181 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6186 /* Grab the type out of the VPD and store it away */
6187 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
6189 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
6191 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
6193 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
6194 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
6195 sizeof(struct ipr_inquiry_page0));
6198 return IPR_RC_JOB_RETURN;
6202 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
6203 * @ipr_cmd: ipr command struct
6205 * This function sends a standard inquiry to the adapter.
6210 static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
6212 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6215 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
6217 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
6218 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
6219 sizeof(struct ipr_ioa_vpd));
6222 return IPR_RC_JOB_RETURN;
6226 * ipr_ioafp_indentify_hrrq - Send Identify Host RRQ.
6227 * @ipr_cmd: ipr command struct
6229 * This function send an Identify Host Request Response Queue
6230 * command to establish the HRRQ with the adapter.
6235 static int ipr_ioafp_indentify_hrrq(struct ipr_cmnd *ipr_cmd)
6237 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6238 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6241 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
6243 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
6244 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6246 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6247 ioarcb->cmd_pkt.cdb[2] =
6248 ((u32) ioa_cfg->host_rrq_dma >> 24) & 0xff;
6249 ioarcb->cmd_pkt.cdb[3] =
6250 ((u32) ioa_cfg->host_rrq_dma >> 16) & 0xff;
6251 ioarcb->cmd_pkt.cdb[4] =
6252 ((u32) ioa_cfg->host_rrq_dma >> 8) & 0xff;
6253 ioarcb->cmd_pkt.cdb[5] =
6254 ((u32) ioa_cfg->host_rrq_dma) & 0xff;
6255 ioarcb->cmd_pkt.cdb[7] =
6256 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff;
6257 ioarcb->cmd_pkt.cdb[8] =
6258 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff;
6260 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
6262 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6265 return IPR_RC_JOB_RETURN;
6269 * ipr_reset_timer_done - Adapter reset timer function
6270 * @ipr_cmd: ipr command struct
6272 * Description: This function is used in adapter reset processing
6273 * for timing events. If the reset_cmd pointer in the IOA
6274 * config struct is not this adapter's we are doing nested
6275 * resets and fail_all_ops will take care of freeing the
6281 static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
6283 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6284 unsigned long lock_flags = 0;
6286 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6288 if (ioa_cfg->reset_cmd == ipr_cmd) {
6289 list_del(&ipr_cmd->queue);
6290 ipr_cmd->done(ipr_cmd);
6293 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6297 * ipr_reset_start_timer - Start a timer for adapter reset job
6298 * @ipr_cmd: ipr command struct
6299 * @timeout: timeout value
6301 * Description: This function is used in adapter reset processing
6302 * for timing events. If the reset_cmd pointer in the IOA
6303 * config struct is not this adapter's we are doing nested
6304 * resets and fail_all_ops will take care of freeing the
6310 static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
6311 unsigned long timeout)
6313 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
6314 ipr_cmd->done = ipr_reset_ioa_job;
6316 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
6317 ipr_cmd->timer.expires = jiffies + timeout;
6318 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
6319 add_timer(&ipr_cmd->timer);
6323 * ipr_init_ioa_mem - Initialize ioa_cfg control block
6324 * @ioa_cfg: ioa cfg struct
6329 static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
6331 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS);
6333 /* Initialize Host RRQ pointers */
6334 ioa_cfg->hrrq_start = ioa_cfg->host_rrq;
6335 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1];
6336 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
6337 ioa_cfg->toggle_bit = 1;
6339 /* Zero out config table */
6340 memset(ioa_cfg->cfg_table, 0, sizeof(struct ipr_config_table));
6344 * ipr_reset_enable_ioa - Enable the IOA following a reset.
6345 * @ipr_cmd: ipr command struct
6347 * This function reinitializes some control blocks and
6348 * enables destructive diagnostics on the adapter.
6353 static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
6355 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6356 volatile u32 int_reg;
6359 ipr_cmd->job_step = ipr_ioafp_indentify_hrrq;
6360 ipr_init_ioa_mem(ioa_cfg);
6362 ioa_cfg->allow_interrupts = 1;
6363 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
6365 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
6366 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
6367 ioa_cfg->regs.clr_interrupt_mask_reg);
6368 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
6369 return IPR_RC_JOB_CONTINUE;
6372 /* Enable destructive diagnostics on IOA */
6373 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg);
6375 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg);
6376 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
6378 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
6380 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
6381 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
6382 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
6383 ipr_cmd->done = ipr_reset_ioa_job;
6384 add_timer(&ipr_cmd->timer);
6385 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
6388 return IPR_RC_JOB_RETURN;
6392 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
6393 * @ipr_cmd: ipr command struct
6395 * This function is invoked when an adapter dump has run out
6396 * of processing time.
6399 * IPR_RC_JOB_CONTINUE
6401 static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
6403 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6405 if (ioa_cfg->sdt_state == GET_DUMP)
6406 ioa_cfg->sdt_state = ABORT_DUMP;
6408 ipr_cmd->job_step = ipr_reset_alert;
6410 return IPR_RC_JOB_CONTINUE;
6414 * ipr_unit_check_no_data - Log a unit check/no data error log
6415 * @ioa_cfg: ioa config struct
6417 * Logs an error indicating the adapter unit checked, but for some
6418 * reason, we were unable to fetch the unit check buffer.
6423 static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
6425 ioa_cfg->errors_logged++;
6426 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
6430 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
6431 * @ioa_cfg: ioa config struct
6433 * Fetches the unit check buffer from the adapter by clocking the data
6434 * through the mailbox register.
6439 static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
6441 unsigned long mailbox;
6442 struct ipr_hostrcb *hostrcb;
6443 struct ipr_uc_sdt sdt;
6447 mailbox = readl(ioa_cfg->ioa_mailbox);
6449 if (!ipr_sdt_is_fmt2(mailbox)) {
6450 ipr_unit_check_no_data(ioa_cfg);
6454 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
6455 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
6456 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
6458 if (rc || (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE) ||
6459 !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY)) {
6460 ipr_unit_check_no_data(ioa_cfg);
6464 /* Find length of the first sdt entry (UC buffer) */
6465 length = (be32_to_cpu(sdt.entry[0].end_offset) -
6466 be32_to_cpu(sdt.entry[0].bar_str_offset)) & IPR_FMT2_MBX_ADDR_MASK;
6468 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
6469 struct ipr_hostrcb, queue);
6470 list_del(&hostrcb->queue);
6471 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
6473 rc = ipr_get_ldump_data_section(ioa_cfg,
6474 be32_to_cpu(sdt.entry[0].bar_str_offset),
6475 (__be32 *)&hostrcb->hcam,
6476 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
6479 ipr_handle_log_data(ioa_cfg, hostrcb);
6480 ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc);
6481 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
6482 ioa_cfg->sdt_state == GET_DUMP)
6483 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
6485 ipr_unit_check_no_data(ioa_cfg);
6487 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
6491 * ipr_reset_restore_cfg_space - Restore PCI config space.
6492 * @ipr_cmd: ipr command struct
6494 * Description: This function restores the saved PCI config space of
6495 * the adapter, fails all outstanding ops back to the callers, and
6496 * fetches the dump/unit check if applicable to this reset.
6499 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6501 static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
6503 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6507 rc = pci_restore_state(ioa_cfg->pdev);
6509 if (rc != PCIBIOS_SUCCESSFUL) {
6510 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
6511 return IPR_RC_JOB_CONTINUE;
6514 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
6515 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
6516 return IPR_RC_JOB_CONTINUE;
6519 ipr_fail_all_ops(ioa_cfg);
6521 if (ioa_cfg->ioa_unit_checked) {
6522 ioa_cfg->ioa_unit_checked = 0;
6523 ipr_get_unit_check_buffer(ioa_cfg);
6524 ipr_cmd->job_step = ipr_reset_alert;
6525 ipr_reset_start_timer(ipr_cmd, 0);
6526 return IPR_RC_JOB_RETURN;
6529 if (ioa_cfg->in_ioa_bringdown) {
6530 ipr_cmd->job_step = ipr_ioa_bringdown_done;
6532 ipr_cmd->job_step = ipr_reset_enable_ioa;
6534 if (GET_DUMP == ioa_cfg->sdt_state) {
6535 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT);
6536 ipr_cmd->job_step = ipr_reset_wait_for_dump;
6537 schedule_work(&ioa_cfg->work_q);
6538 return IPR_RC_JOB_RETURN;
6543 return IPR_RC_JOB_CONTINUE;
6547 * ipr_reset_bist_done - BIST has completed on the adapter.
6548 * @ipr_cmd: ipr command struct
6550 * Description: Unblock config space and resume the reset process.
6553 * IPR_RC_JOB_CONTINUE
6555 static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
6558 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
6559 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
6561 return IPR_RC_JOB_CONTINUE;
6565 * ipr_reset_start_bist - Run BIST on the adapter.
6566 * @ipr_cmd: ipr command struct
6568 * Description: This function runs BIST on the adapter, then delays 2 seconds.
6571 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6573 static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
6575 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6579 pci_block_user_cfg_access(ioa_cfg->pdev);
6580 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
6582 if (rc != PCIBIOS_SUCCESSFUL) {
6583 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
6584 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
6585 rc = IPR_RC_JOB_CONTINUE;
6587 ipr_cmd->job_step = ipr_reset_bist_done;
6588 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
6589 rc = IPR_RC_JOB_RETURN;
6597 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
6598 * @ipr_cmd: ipr command struct
6600 * Description: This clears PCI reset to the adapter and delays two seconds.
6605 static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
6608 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset);
6609 ipr_cmd->job_step = ipr_reset_bist_done;
6610 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
6612 return IPR_RC_JOB_RETURN;
6616 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
6617 * @ipr_cmd: ipr command struct
6619 * Description: This asserts PCI reset to the adapter.
6624 static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
6626 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6627 struct pci_dev *pdev = ioa_cfg->pdev;
6630 pci_block_user_cfg_access(pdev);
6631 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
6632 ipr_cmd->job_step = ipr_reset_slot_reset_done;
6633 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT);
6635 return IPR_RC_JOB_RETURN;
6639 * ipr_reset_allowed - Query whether or not IOA can be reset
6640 * @ioa_cfg: ioa config struct
6643 * 0 if reset not allowed / non-zero if reset is allowed
6645 static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
6647 volatile u32 temp_reg;
6649 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
6650 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
6654 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
6655 * @ipr_cmd: ipr command struct
6657 * Description: This function waits for adapter permission to run BIST,
6658 * then runs BIST. If the adapter does not give permission after a
6659 * reasonable time, we will reset the adapter anyway. The impact of
6660 * resetting the adapter without warning the adapter is the risk of
6661 * losing the persistent error log on the adapter. If the adapter is
6662 * reset while it is writing to the flash on the adapter, the flash
6663 * segment will have bad ECC and be zeroed.
6666 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6668 static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
6670 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6671 int rc = IPR_RC_JOB_RETURN;
6673 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
6674 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
6675 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
6677 ipr_cmd->job_step = ioa_cfg->reset;
6678 rc = IPR_RC_JOB_CONTINUE;
6685 * ipr_reset_alert_part2 - Alert the adapter of a pending reset
6686 * @ipr_cmd: ipr command struct
6688 * Description: This function alerts the adapter that it will be reset.
6689 * If memory space is not currently enabled, proceed directly
6690 * to running BIST on the adapter. The timer must always be started
6691 * so we guarantee we do not run BIST from ipr_isr.
6696 static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
6698 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6703 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
6705 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
6706 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
6707 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg);
6708 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
6710 ipr_cmd->job_step = ioa_cfg->reset;
6713 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
6714 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
6717 return IPR_RC_JOB_RETURN;
6721 * ipr_reset_ucode_download_done - Microcode download completion
6722 * @ipr_cmd: ipr command struct
6724 * Description: This function unmaps the microcode download buffer.
6727 * IPR_RC_JOB_CONTINUE
6729 static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
6731 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6732 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
6734 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist,
6735 sglist->num_sg, DMA_TO_DEVICE);
6737 ipr_cmd->job_step = ipr_reset_alert;
6738 return IPR_RC_JOB_CONTINUE;
6742 * ipr_reset_ucode_download - Download microcode to the adapter
6743 * @ipr_cmd: ipr command struct
6745 * Description: This function checks to see if it there is microcode
6746 * to download to the adapter. If there is, a download is performed.
6749 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6751 static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
6753 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6754 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
6757 ipr_cmd->job_step = ipr_reset_alert;
6760 return IPR_RC_JOB_CONTINUE;
6762 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6763 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6764 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
6765 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
6766 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
6767 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
6768 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
6770 ipr_build_ucode_ioadl(ipr_cmd, sglist);
6771 ipr_cmd->job_step = ipr_reset_ucode_download_done;
6773 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
6774 IPR_WRITE_BUFFER_TIMEOUT);
6777 return IPR_RC_JOB_RETURN;
6781 * ipr_reset_shutdown_ioa - Shutdown the adapter
6782 * @ipr_cmd: ipr command struct
6784 * Description: This function issues an adapter shutdown of the
6785 * specified type to the specified adapter as part of the
6786 * adapter reset job.
6789 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6791 static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
6793 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6794 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
6795 unsigned long timeout;
6796 int rc = IPR_RC_JOB_CONTINUE;
6799 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) {
6800 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6801 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6802 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
6803 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
6805 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
6806 timeout = IPR_SHUTDOWN_TIMEOUT;
6807 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
6808 timeout = IPR_INTERNAL_TIMEOUT;
6809 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
6810 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
6812 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
6814 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
6816 rc = IPR_RC_JOB_RETURN;
6817 ipr_cmd->job_step = ipr_reset_ucode_download;
6819 ipr_cmd->job_step = ipr_reset_alert;
6826 * ipr_reset_ioa_job - Adapter reset job
6827 * @ipr_cmd: ipr command struct
6829 * Description: This function is the job router for the adapter reset job.
6834 static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
6837 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6840 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
6842 if (ioa_cfg->reset_cmd != ipr_cmd) {
6844 * We are doing nested adapter resets and this is
6845 * not the current reset job.
6847 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6851 if (IPR_IOASC_SENSE_KEY(ioasc)) {
6852 rc = ipr_cmd->job_step_failed(ipr_cmd);
6853 if (rc == IPR_RC_JOB_RETURN)
6857 ipr_reinit_ipr_cmnd(ipr_cmd);
6858 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
6859 rc = ipr_cmd->job_step(ipr_cmd);
6860 } while(rc == IPR_RC_JOB_CONTINUE);
6864 * _ipr_initiate_ioa_reset - Initiate an adapter reset
6865 * @ioa_cfg: ioa config struct
6866 * @job_step: first job step of reset job
6867 * @shutdown_type: shutdown type
6869 * Description: This function will initiate the reset of the given adapter
6870 * starting at the selected job step.
6871 * If the caller needs to wait on the completion of the reset,
6872 * the caller must sleep on the reset_wait_q.
6877 static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
6878 int (*job_step) (struct ipr_cmnd *),
6879 enum ipr_shutdown_type shutdown_type)
6881 struct ipr_cmnd *ipr_cmd;
6883 ioa_cfg->in_reset_reload = 1;
6884 ioa_cfg->allow_cmds = 0;
6885 scsi_block_requests(ioa_cfg->host);
6887 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
6888 ioa_cfg->reset_cmd = ipr_cmd;
6889 ipr_cmd->job_step = job_step;
6890 ipr_cmd->u.shutdown_type = shutdown_type;
6892 ipr_reset_ioa_job(ipr_cmd);
6896 * ipr_initiate_ioa_reset - Initiate an adapter reset
6897 * @ioa_cfg: ioa config struct
6898 * @shutdown_type: shutdown type
6900 * Description: This function will initiate the reset of the given adapter.
6901 * If the caller needs to wait on the completion of the reset,
6902 * the caller must sleep on the reset_wait_q.
6907 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
6908 enum ipr_shutdown_type shutdown_type)
6910 if (ioa_cfg->ioa_is_dead)
6913 if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP)
6914 ioa_cfg->sdt_state = ABORT_DUMP;
6916 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
6917 dev_err(&ioa_cfg->pdev->dev,
6918 "IOA taken offline - error recovery failed\n");
6920 ioa_cfg->reset_retries = 0;
6921 ioa_cfg->ioa_is_dead = 1;
6923 if (ioa_cfg->in_ioa_bringdown) {
6924 ioa_cfg->reset_cmd = NULL;
6925 ioa_cfg->in_reset_reload = 0;
6926 ipr_fail_all_ops(ioa_cfg);
6927 wake_up_all(&ioa_cfg->reset_wait_q);
6929 spin_unlock_irq(ioa_cfg->host->host_lock);
6930 scsi_unblock_requests(ioa_cfg->host);
6931 spin_lock_irq(ioa_cfg->host->host_lock);
6934 ioa_cfg->in_ioa_bringdown = 1;
6935 shutdown_type = IPR_SHUTDOWN_NONE;
6939 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
6944 * ipr_reset_freeze - Hold off all I/O activity
6945 * @ipr_cmd: ipr command struct
6947 * Description: If the PCI slot is frozen, hold off all I/O
6948 * activity; then, as soon as the slot is available again,
6949 * initiate an adapter reset.
6951 static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
6953 /* Disallow new interrupts, avoid loop */
6954 ipr_cmd->ioa_cfg->allow_interrupts = 0;
6955 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
6956 ipr_cmd->done = ipr_reset_ioa_job;
6957 return IPR_RC_JOB_RETURN;
6961 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
6962 * @pdev: PCI device struct
6964 * Description: This routine is called to tell us that the PCI bus
6965 * is down. Can't do anything here, except put the device driver
6966 * into a holding pattern, waiting for the PCI bus to come back.
6968 static void ipr_pci_frozen(struct pci_dev *pdev)
6970 unsigned long flags = 0;
6971 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
6973 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6974 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
6975 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6979 * ipr_pci_slot_reset - Called when PCI slot has been reset.
6980 * @pdev: PCI device struct
6982 * Description: This routine is called by the pci error recovery
6983 * code after the PCI slot has been reset, just before we
6984 * should resume normal operations.
6986 static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
6988 unsigned long flags = 0;
6989 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
6991 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6992 if (ioa_cfg->needs_warm_reset)
6993 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
6995 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
6997 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6998 return PCI_ERS_RESULT_RECOVERED;
7002 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
7003 * @pdev: PCI device struct
7005 * Description: This routine is called when the PCI bus has
7006 * permanently failed.
7008 static void ipr_pci_perm_failure(struct pci_dev *pdev)
7010 unsigned long flags = 0;
7011 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7013 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
7014 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
7015 ioa_cfg->sdt_state = ABORT_DUMP;
7016 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES;
7017 ioa_cfg->in_ioa_bringdown = 1;
7018 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7019 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
7023 * ipr_pci_error_detected - Called when a PCI error is detected.
7024 * @pdev: PCI device struct
7025 * @state: PCI channel state
7027 * Description: Called when a PCI error is detected.
7030 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
7032 static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
7033 pci_channel_state_t state)
7036 case pci_channel_io_frozen:
7037 ipr_pci_frozen(pdev);
7038 return PCI_ERS_RESULT_NEED_RESET;
7039 case pci_channel_io_perm_failure:
7040 ipr_pci_perm_failure(pdev);
7041 return PCI_ERS_RESULT_DISCONNECT;
7046 return PCI_ERS_RESULT_NEED_RESET;
7050 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
7051 * @ioa_cfg: ioa cfg struct
7053 * Description: This is the second phase of adapter intialization
7054 * This function takes care of initilizing the adapter to the point
7055 * where it can accept new commands.
7058 * 0 on success / -EIO on failure
7060 static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
7063 unsigned long host_lock_flags = 0;
7066 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7067 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
7068 if (ioa_cfg->needs_hard_reset) {
7069 ioa_cfg->needs_hard_reset = 0;
7070 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7072 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
7075 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7076 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7077 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7079 if (ioa_cfg->ioa_is_dead) {
7081 } else if (ipr_invalid_adapter(ioa_cfg)) {
7085 dev_err(&ioa_cfg->pdev->dev,
7086 "Adapter not supported in this hardware configuration.\n");
7089 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7096 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
7097 * @ioa_cfg: ioa config struct
7102 static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
7106 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
7107 if (ioa_cfg->ipr_cmnd_list[i])
7108 pci_pool_free(ioa_cfg->ipr_cmd_pool,
7109 ioa_cfg->ipr_cmnd_list[i],
7110 ioa_cfg->ipr_cmnd_list_dma[i]);
7112 ioa_cfg->ipr_cmnd_list[i] = NULL;
7115 if (ioa_cfg->ipr_cmd_pool)
7116 pci_pool_destroy (ioa_cfg->ipr_cmd_pool);
7118 ioa_cfg->ipr_cmd_pool = NULL;
7122 * ipr_free_mem - Frees memory allocated for an adapter
7123 * @ioa_cfg: ioa cfg struct
7128 static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
7132 kfree(ioa_cfg->res_entries);
7133 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs),
7134 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
7135 ipr_free_cmd_blks(ioa_cfg);
7136 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
7137 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
7138 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_config_table),
7140 ioa_cfg->cfg_table_dma);
7142 for (i = 0; i < IPR_NUM_HCAMS; i++) {
7143 pci_free_consistent(ioa_cfg->pdev,
7144 sizeof(struct ipr_hostrcb),
7145 ioa_cfg->hostrcb[i],
7146 ioa_cfg->hostrcb_dma[i]);
7149 ipr_free_dump(ioa_cfg);
7150 kfree(ioa_cfg->trace);
7154 * ipr_free_all_resources - Free all allocated resources for an adapter.
7155 * @ipr_cmd: ipr command struct
7157 * This function frees all allocated resources for the
7158 * specified adapter.
7163 static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
7165 struct pci_dev *pdev = ioa_cfg->pdev;
7168 free_irq(pdev->irq, ioa_cfg);
7169 iounmap(ioa_cfg->hdw_dma_regs);
7170 pci_release_regions(pdev);
7171 ipr_free_mem(ioa_cfg);
7172 scsi_host_put(ioa_cfg->host);
7173 pci_disable_device(pdev);
7178 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
7179 * @ioa_cfg: ioa config struct
7182 * 0 on success / -ENOMEM on allocation failure
7184 static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
7186 struct ipr_cmnd *ipr_cmd;
7187 struct ipr_ioarcb *ioarcb;
7188 dma_addr_t dma_addr;
7191 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev,
7192 sizeof(struct ipr_cmnd), 8, 0);
7194 if (!ioa_cfg->ipr_cmd_pool)
7197 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
7198 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
7201 ipr_free_cmd_blks(ioa_cfg);
7205 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
7206 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
7207 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
7209 ioarcb = &ipr_cmd->ioarcb;
7210 ioarcb->ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
7211 ioarcb->host_response_handle = cpu_to_be32(i << 2);
7212 ioarcb->write_ioadl_addr =
7213 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl));
7214 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
7215 ioarcb->ioasa_host_pci_addr =
7216 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioasa));
7217 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
7218 ipr_cmd->cmd_index = i;
7219 ipr_cmd->ioa_cfg = ioa_cfg;
7220 ipr_cmd->sense_buffer_dma = dma_addr +
7221 offsetof(struct ipr_cmnd, sense_buffer);
7223 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
7230 * ipr_alloc_mem - Allocate memory for an adapter
7231 * @ioa_cfg: ioa config struct
7234 * 0 on success / non-zero for error
7236 static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
7238 struct pci_dev *pdev = ioa_cfg->pdev;
7239 int i, rc = -ENOMEM;
7242 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
7243 IPR_MAX_PHYSICAL_DEVS, GFP_KERNEL);
7245 if (!ioa_cfg->res_entries)
7248 for (i = 0; i < IPR_MAX_PHYSICAL_DEVS; i++)
7249 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
7251 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev,
7252 sizeof(struct ipr_misc_cbs),
7253 &ioa_cfg->vpd_cbs_dma);
7255 if (!ioa_cfg->vpd_cbs)
7256 goto out_free_res_entries;
7258 if (ipr_alloc_cmd_blks(ioa_cfg))
7259 goto out_free_vpd_cbs;
7261 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev,
7262 sizeof(u32) * IPR_NUM_CMD_BLKS,
7263 &ioa_cfg->host_rrq_dma);
7265 if (!ioa_cfg->host_rrq)
7266 goto out_ipr_free_cmd_blocks;
7268 ioa_cfg->cfg_table = pci_alloc_consistent(ioa_cfg->pdev,
7269 sizeof(struct ipr_config_table),
7270 &ioa_cfg->cfg_table_dma);
7272 if (!ioa_cfg->cfg_table)
7273 goto out_free_host_rrq;
7275 for (i = 0; i < IPR_NUM_HCAMS; i++) {
7276 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev,
7277 sizeof(struct ipr_hostrcb),
7278 &ioa_cfg->hostrcb_dma[i]);
7280 if (!ioa_cfg->hostrcb[i])
7281 goto out_free_hostrcb_dma;
7283 ioa_cfg->hostrcb[i]->hostrcb_dma =
7284 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
7285 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
7286 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
7289 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
7290 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
7292 if (!ioa_cfg->trace)
7293 goto out_free_hostrcb_dma;
7300 out_free_hostrcb_dma:
7302 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb),
7303 ioa_cfg->hostrcb[i],
7304 ioa_cfg->hostrcb_dma[i]);
7306 pci_free_consistent(pdev, sizeof(struct ipr_config_table),
7307 ioa_cfg->cfg_table, ioa_cfg->cfg_table_dma);
7309 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
7310 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
7311 out_ipr_free_cmd_blocks:
7312 ipr_free_cmd_blks(ioa_cfg);
7314 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs),
7315 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
7316 out_free_res_entries:
7317 kfree(ioa_cfg->res_entries);
7322 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
7323 * @ioa_cfg: ioa config struct
7328 static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
7332 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
7333 ioa_cfg->bus_attr[i].bus = i;
7334 ioa_cfg->bus_attr[i].qas_enabled = 0;
7335 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
7336 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
7337 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
7339 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
7344 * ipr_init_ioa_cfg - Initialize IOA config struct
7345 * @ioa_cfg: ioa config struct
7346 * @host: scsi host struct
7347 * @pdev: PCI dev struct
7352 static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
7353 struct Scsi_Host *host, struct pci_dev *pdev)
7355 const struct ipr_interrupt_offsets *p;
7356 struct ipr_interrupts *t;
7359 ioa_cfg->host = host;
7360 ioa_cfg->pdev = pdev;
7361 ioa_cfg->log_level = ipr_log_level;
7362 ioa_cfg->doorbell = IPR_DOORBELL;
7363 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
7364 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
7365 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL);
7366 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL);
7367 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
7368 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
7369 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
7370 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
7372 INIT_LIST_HEAD(&ioa_cfg->free_q);
7373 INIT_LIST_HEAD(&ioa_cfg->pending_q);
7374 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
7375 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
7376 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
7377 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
7378 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
7379 init_waitqueue_head(&ioa_cfg->reset_wait_q);
7380 ioa_cfg->sdt_state = INACTIVE;
7381 if (ipr_enable_cache)
7382 ioa_cfg->cache_state = CACHE_ENABLED;
7384 ioa_cfg->cache_state = CACHE_DISABLED;
7386 ipr_initialize_bus_attr(ioa_cfg);
7388 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
7389 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
7390 host->max_channel = IPR_MAX_BUS_TO_SCAN;
7391 host->unique_id = host->host_no;
7392 host->max_cmd_len = IPR_MAX_CDB_LEN;
7393 pci_set_drvdata(pdev, ioa_cfg);
7395 p = &ioa_cfg->chip_cfg->regs;
7397 base = ioa_cfg->hdw_dma_regs;
7399 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
7400 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
7401 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
7402 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
7403 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
7404 t->ioarrin_reg = base + p->ioarrin_reg;
7405 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
7406 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
7407 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
7411 * ipr_get_chip_cfg - Find adapter chip configuration
7412 * @dev_id: PCI device id struct
7415 * ptr to chip config on success / NULL on failure
7417 static const struct ipr_chip_cfg_t * __devinit
7418 ipr_get_chip_cfg(const struct pci_device_id *dev_id)
7422 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
7423 if (ipr_chip[i].vendor == dev_id->vendor &&
7424 ipr_chip[i].device == dev_id->device)
7425 return ipr_chip[i].cfg;
7430 * ipr_probe_ioa - Allocates memory and does first stage of initialization
7431 * @pdev: PCI device struct
7432 * @dev_id: PCI device id struct
7435 * 0 on success / non-zero on failure
7437 static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
7438 const struct pci_device_id *dev_id)
7440 struct ipr_ioa_cfg *ioa_cfg;
7441 struct Scsi_Host *host;
7442 unsigned long ipr_regs_pci;
7443 void __iomem *ipr_regs;
7444 int rc = PCIBIOS_SUCCESSFUL;
7445 volatile u32 mask, uproc, interrupts;
7449 if ((rc = pci_enable_device(pdev))) {
7450 dev_err(&pdev->dev, "Cannot enable adapter\n");
7454 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
7456 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
7459 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
7464 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
7465 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
7466 ata_host_init(&ioa_cfg->ata_host, &pdev->dev,
7467 sata_port_info.flags, &ipr_sata_ops);
7469 ioa_cfg->chip_cfg = ipr_get_chip_cfg(dev_id);
7471 if (!ioa_cfg->chip_cfg) {
7472 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
7473 dev_id->vendor, dev_id->device);
7474 goto out_scsi_host_put;
7477 if (ipr_transop_timeout)
7478 ioa_cfg->transop_timeout = ipr_transop_timeout;
7479 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
7480 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
7482 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
7484 ioa_cfg->revid = pdev->revision;
7486 ipr_regs_pci = pci_resource_start(pdev, 0);
7488 rc = pci_request_regions(pdev, IPR_NAME);
7491 "Couldn't register memory range of registers\n");
7492 goto out_scsi_host_put;
7495 ipr_regs = ioremap(ipr_regs_pci, pci_resource_len(pdev, 0));
7499 "Couldn't map memory range of registers\n");
7501 goto out_release_regions;
7504 ioa_cfg->hdw_dma_regs = ipr_regs;
7505 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
7506 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
7508 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
7510 pci_set_master(pdev);
7512 rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
7514 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n");
7518 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
7519 ioa_cfg->chip_cfg->cache_line_size);
7521 if (rc != PCIBIOS_SUCCESSFUL) {
7522 dev_err(&pdev->dev, "Write of cache line size failed\n");
7527 /* Save away PCI config space for use following IOA reset */
7528 rc = pci_save_state(pdev);
7530 if (rc != PCIBIOS_SUCCESSFUL) {
7531 dev_err(&pdev->dev, "Failed to save PCI config space\n");
7536 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
7539 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
7542 rc = ipr_alloc_mem(ioa_cfg);
7545 "Couldn't allocate enough memory for device driver!\n");
7550 * If HRRQ updated interrupt is not masked, or reset alert is set,
7551 * the card is in an unknown state and needs a hard reset
7553 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7554 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg);
7555 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg);
7556 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
7557 ioa_cfg->needs_hard_reset = 1;
7558 if (interrupts & IPR_PCII_ERROR_INTERRUPTS)
7559 ioa_cfg->needs_hard_reset = 1;
7560 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
7561 ioa_cfg->ioa_unit_checked = 1;
7563 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
7564 rc = request_irq(pdev->irq, ipr_isr, IRQF_SHARED, IPR_NAME, ioa_cfg);
7567 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
7572 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
7573 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
7574 ioa_cfg->needs_warm_reset = 1;
7575 ioa_cfg->reset = ipr_reset_slot_reset;
7577 ioa_cfg->reset = ipr_reset_start_bist;
7579 spin_lock(&ipr_driver_lock);
7580 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
7581 spin_unlock(&ipr_driver_lock);
7588 ipr_free_mem(ioa_cfg);
7591 out_release_regions:
7592 pci_release_regions(pdev);
7594 scsi_host_put(host);
7596 pci_disable_device(pdev);
7601 * ipr_scan_vsets - Scans for VSET devices
7602 * @ioa_cfg: ioa config struct
7604 * Description: Since the VSET resources do not follow SAM in that we can have
7605 * sparse LUNs with no LUN 0, we have to scan for these ourselves.
7610 static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg)
7614 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++)
7615 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ )
7616 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun);
7620 * ipr_initiate_ioa_bringdown - Bring down an adapter
7621 * @ioa_cfg: ioa config struct
7622 * @shutdown_type: shutdown type
7624 * Description: This function will initiate bringing down the adapter.
7625 * This consists of issuing an IOA shutdown to the adapter
7626 * to flush the cache, and running BIST.
7627 * If the caller needs to wait on the completion of the reset,
7628 * the caller must sleep on the reset_wait_q.
7633 static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
7634 enum ipr_shutdown_type shutdown_type)
7637 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
7638 ioa_cfg->sdt_state = ABORT_DUMP;
7639 ioa_cfg->reset_retries = 0;
7640 ioa_cfg->in_ioa_bringdown = 1;
7641 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
7646 * __ipr_remove - Remove a single adapter
7647 * @pdev: pci device struct
7649 * Adapter hot plug remove entry point.
7654 static void __ipr_remove(struct pci_dev *pdev)
7656 unsigned long host_lock_flags = 0;
7657 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7660 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7661 while(ioa_cfg->in_reset_reload) {
7662 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7663 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7664 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7667 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
7669 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7670 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7671 flush_scheduled_work();
7672 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7674 spin_lock(&ipr_driver_lock);
7675 list_del(&ioa_cfg->queue);
7676 spin_unlock(&ipr_driver_lock);
7678 if (ioa_cfg->sdt_state == ABORT_DUMP)
7679 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7680 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7682 ipr_free_all_resources(ioa_cfg);
7688 * ipr_remove - IOA hot plug remove entry point
7689 * @pdev: pci device struct
7691 * Adapter hot plug remove entry point.
7696 static void ipr_remove(struct pci_dev *pdev)
7698 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7702 ipr_remove_trace_file(&ioa_cfg->host->shost_classdev.kobj,
7704 ipr_remove_dump_file(&ioa_cfg->host->shost_classdev.kobj,
7706 scsi_remove_host(ioa_cfg->host);
7714 * ipr_probe - Adapter hot plug add entry point
7717 * 0 on success / non-zero on failure
7719 static int __devinit ipr_probe(struct pci_dev *pdev,
7720 const struct pci_device_id *dev_id)
7722 struct ipr_ioa_cfg *ioa_cfg;
7725 rc = ipr_probe_ioa(pdev, dev_id);
7730 ioa_cfg = pci_get_drvdata(pdev);
7731 rc = ipr_probe_ioa_part2(ioa_cfg);
7738 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
7745 rc = ipr_create_trace_file(&ioa_cfg->host->shost_classdev.kobj,
7749 scsi_remove_host(ioa_cfg->host);
7754 rc = ipr_create_dump_file(&ioa_cfg->host->shost_classdev.kobj,
7758 ipr_remove_trace_file(&ioa_cfg->host->shost_classdev.kobj,
7760 scsi_remove_host(ioa_cfg->host);
7765 scsi_scan_host(ioa_cfg->host);
7766 ipr_scan_vsets(ioa_cfg);
7767 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN);
7768 ioa_cfg->allow_ml_add_del = 1;
7769 ioa_cfg->host->max_channel = IPR_VSET_BUS;
7770 schedule_work(&ioa_cfg->work_q);
7775 * ipr_shutdown - Shutdown handler.
7776 * @pdev: pci device struct
7778 * This function is invoked upon system shutdown/reboot. It will issue
7779 * an adapter shutdown to the adapter to flush the write cache.
7784 static void ipr_shutdown(struct pci_dev *pdev)
7786 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7787 unsigned long lock_flags = 0;
7789 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7790 while(ioa_cfg->in_reset_reload) {
7791 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7792 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7793 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7796 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
7797 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7798 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7801 static struct pci_device_id ipr_pci_table[] __devinitdata = {
7802 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
7803 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
7804 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
7805 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
7806 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
7807 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
7808 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
7809 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
7810 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
7811 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
7812 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
7813 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
7814 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
7815 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
7816 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
7817 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
7818 IPR_USE_LONG_TRANSOP_TIMEOUT },
7819 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
7820 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
7821 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
7822 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
7823 IPR_USE_LONG_TRANSOP_TIMEOUT },
7824 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
7825 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
7826 IPR_USE_LONG_TRANSOP_TIMEOUT },
7827 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
7828 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
7829 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
7830 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
7831 IPR_USE_LONG_TRANSOP_TIMEOUT},
7832 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
7833 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
7834 IPR_USE_LONG_TRANSOP_TIMEOUT },
7835 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7836 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
7837 IPR_USE_LONG_TRANSOP_TIMEOUT },
7838 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7839 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0,
7840 IPR_USE_LONG_TRANSOP_TIMEOUT },
7841 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7842 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
7843 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7844 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
7845 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
7846 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
7847 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
7848 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
7849 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
7850 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
7851 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
7852 IPR_USE_LONG_TRANSOP_TIMEOUT },
7853 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
7854 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
7855 IPR_USE_LONG_TRANSOP_TIMEOUT },
7856 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SCAMP_E,
7857 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0,
7858 IPR_USE_LONG_TRANSOP_TIMEOUT },
7861 MODULE_DEVICE_TABLE(pci, ipr_pci_table);
7863 static struct pci_error_handlers ipr_err_handler = {
7864 .error_detected = ipr_pci_error_detected,
7865 .slot_reset = ipr_pci_slot_reset,
7868 static struct pci_driver ipr_driver = {
7870 .id_table = ipr_pci_table,
7872 .remove = ipr_remove,
7873 .shutdown = ipr_shutdown,
7874 .err_handler = &ipr_err_handler,
7875 .dynids.use_driver_data = 1
7879 * ipr_init - Module entry point
7882 * 0 on success / negative value on failure
7884 static int __init ipr_init(void)
7886 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
7887 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
7889 return pci_register_driver(&ipr_driver);
7893 * ipr_exit - Module unload
7895 * Module unload entry point.
7900 static void __exit ipr_exit(void)
7902 pci_unregister_driver(&ipr_driver);
7905 module_init(ipr_init);
7906 module_exit(ipr_exit);